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Windows 10 Mobile Preview build 10512 is now live for Fast ring Windows Insiders

The latest update for the Windows 10 Mobile Insider preview build is now ready to be downloaded, over a month since the last official build, 10166, was released by Microsoft. The new build number is 10512 and can be grabbed by folks who are a part of the Windows Insider program by going to Settings > Phone Update to check for a new OS update.

In a blog post, Windows Insider head Gabriel Aul stated:

"Thanks for your patience waiting for this one, the team was very focused on our Windows 10 release for PCs and tablets, and we needed to do some prep work for Mobile to move to a new branch. I expect the builds to be out more frequently again as we go forward from here. Our major focus on Windows 10 Mobile right now is on improvements to core quality."

Aul also noted that users should also check out the Windows Store as there should be updates to many apps in the store. One app that is not in the store is the Insider Hub app, but he stated it would be back in future preview builds.

Today's new Fast Ring update paths:

  • Windows Phone 8.1 > Windows 10 Mobile build 10166 > Windows 10 Mobile build 10512
  • Windows 10 Mobile build 10166 > Windows 10 Mobile build 10512

Here's what's new, improved and fixed in Windows 10 Mobile preview build 10512 {.cta}

Windows 10 Mobile Preview build 10512 has over 2,000 fixes {.cta}

Source: Microsoft

454 Comments
  • Woohoo
  • Wondering if I should leave the safe and stable 8.1 and jump for it.
  • Do it man!
  • I'm doing it, I'm used to rolling back to 8.1
  • I like ur comment, am use to rolling back lol, I love it
  • Even I am used to rolling back to 8.1 lolz.. Now downloading this build. Lets hope i don't have to roll back for a few days :)
  • They see him rolling, they loving', we go roll now..
  • Well.. This build broke few things that worked in previous build. Specially the Mobile hotspot. :/ You'll roll back.
  • Hotspot did not work for me on 166 so, ymmv.
  • last time i did that, battery life became horrible! (12hrs in WP10 compared into 24hrs in my lumia 920 WP8.1). But really liked WP10! Have to wait and see how this build goes for other people before i make the jump!
  • Strange, my Lumia 920's battery life was so terrible after the Windows Phone 8.1 upgrade i went over to Android. No problems here at all. I have the build before this one released today on my 920 and the battery life is just like it was on Windows Phone 8.0, which was amazing. Posted via the Windows Central App for Android.
  • Maybe you needed to hard reset after you got 8.1 Hard reset fixes a lot of issues like this
  • Thanks for the suggestion. But i dit that multiple times, i even put in a brand new battery. And opening up the device also fixed my broken flash at the back, bad connection i guess. 
  • Lucky you, my 920 either with WP8.1 or W10M build 10166 was dying hard, 8.1 was like 12h and in 10 it was like... what? 6 hours? :'(
  • Same thing hapened to me on my lumia 930 but it wasnt windows it was a app.  Once i iremoved  it, the battery was great again.
  • 24hrs of battery life on 920 running 8.1?! :-o I can't remember the last time I didn't charge my 920 for at least 3 times a day!
  • Fingers crossed myself...it was horrible for me on the last build but I liked the last build I stuck with it...I just upgraded to this build and then reset the phone and am starting fresh (not restoring apps) and will see how it goes...Lumia ICON here.
  • If the start screen loading issue has been resolved, you should, especially since you will eventually be updating anyways. Aside from start screen issue, it's been quite reliable as a daily driver. I was on the fence too but decided to jump in for 10166 and the only thing that really irritated me (in terms of usability) was the start screen.
  • From the known issues, it sounds like the start screen issue is still there. I've read you can turn off "show more tiles" or reduce the number of tiles on your start screen and its ok.
  • Read the known issues - doesn't sound main phone ready.  It is great preview software - but not prime time... caveat emptor
  • Yup.  I was going to install it on my daily driver and start repackaging some .APKs. Guess it goes on test lumia 625 only.
  • If you value safe and stable, just sit tight. when it goes public any remaining bugs will get worked out. If you opt in, you should be fine, but not quite safe or stable in every aspect.
  • Do it, jump already
  • I really can't think of a reason to switch from 8.1.
    10 has literally added nothing to the 8.1 user experience. Mail and SMS is still buggy, with resume screens.
    Just not worth it IMO
  • Oh, come on.. it's not that bad. It's not exactly what I wanted, but there are a few good things here and there. I think I'll enjoy the background thingy, even though I love the skinned tiles option. The only reason I'm wondering if I should go to Win10 is because of the bugs. I read the known issues and I'm worried, even though it's not something huge. Also there's the performance - I'm still not convinced it's better than 8.1.
  • How exactly is the background different in WP 10 vs WP 8.1?  I've seen the difference in screen images but not sure what all the options are.   I like the clear live tiles in 8.1.  All the images I see of WP 10 has some harsh colorful background.
  • That's just the transparency level. You can take it all the way down or up or somewhere in between :-)
  • WE ARE TESTING THE PREVIEW BUILDS , IF YOU DON'T HAVE A SPARE PHONE , JUST SIT ON THE SIDELINES
  • Don't, I'm pretty sure the battery won't last long  
  • Too bad we won't get any features in this build. Really want to see interactive tiles and aero effect in action centre. It's disappointing to see that MSFT is not exploring the tiles concept further, which is the unique thing about the OS.
  • How do you know they're not exploring it? My guess would be they are because why wouldn't they? Doesn't mean we're going to see anything, for a while yet at least.
  • You don't have to guess. They are exploring it. They did a demo of it earlier this year. Still disappointed that it's not coming soon.
  • I just peed my pants!
  • ..mom...get me a towel...I just shit myself...
  • Thought this was gonna happen soon. Im all prepped and ready for my 1520, 1020 & 925 to test! Wooo!!!
    Love being involved in the build process!
  • It sits on 0% for me :( ETA it's moving, I better go get the fridge ready :D
  • Hey there, just gotta be patient :P my phone went from 0% to 4% all the way to 19% and jumped up to 42%.  
  • Pls do we all know how this build stuff get stucked while downloading hahahha
  • I am stuck too, but the fridge joke killed me. hahahahahahahahhaahah
  • It's not a joke, it cools the phone down and avoids a reboot loop that would otherwise happen, at least on my L1520. BTW it's already in there.
  • It isnt a joke really :-D Some people with L1520 needs the fridge to update otherwise the phone overheats :-O Though I haven't had the problem myself :-D
  • I stuck it in front of a big fan, lol.
  • Try watercooling it
  • Damn what if you don't own a fridge
  • Use your mom's?
  • After 15 minutes, I went from 0% to 1%, heh.
  • i stuck on 0 from past 1 hour
  • I'll throw mine in the freezer
  • Beware of condensation. Warranty won't cover it.
  • Hahahahah what warranty? After technical preview??
  • Ditto, my 1520 was stuck at 0% for a couple of hours before it have me an error - rebooted and I'm going to try again.
  • I was about to try to cancel the download, but after 10 minutes, I jumped from 0% to 45%, I guess I'll wait.  
  • Mine has been stuck, at needs 40% battery. Even though its charged 100%
  • Hint about low ram phones in its name?
  • Nice observation :D
  • Good spot!
  • No sleep tonight then..
  • I will sleep peacefully.... Wakeup at early morning and will start checking YouTube or Windows Central for its Hands on
  • Same here as first I ll wait for some
  • I am gonna pass this build.. Videos and Hotspot are broken and the start screen bug is still there.. And there is nothing new in this build.. I think it's few steps backward than 166..so yeah, goodnight.. Posted via the Windows Phone Central App for Android
  • Wow lol
  • Hope.it seems faster ;)
  • Nope... Still boggs down often. As stated many times already, it's not for those who don't have a test mule or are impatient.
  • Hopefully they add something new in the multitask bar, among other speedy improvements from 8.1
  • Too late in the night ..I'm gonna go to sleep and get it done tomorrow!!!
  • hey, why dont you just let it update overnight? you can schedule automatic downloads so youre ready to go when you wake up. :D  
  • Same here
  • Kinda dangerous considering phones sometimes go under bootloop. You don't wanna leave a warm/hot phone on your bed/nightstand unattended
  • Long wire into the fridge my friend :-D
  • Good morning!!!.. Breakfast and downloading... 45%
  • Kool
  • Downloading now. :)
  • About 2 minutes in and finally seeing the progress bar move. Yay.
  • Finally! Been itching to try a new build!
  • ohhh yes! I'll be getting this ASAP
  • Video Playback is broken, plus no hotspot. Cannot put it on the daily driver :|
  • Have you tried a hardreset after update?
  • Report it to windows feedback. We can't do anything about that
  • Its already listed in the known issues for this build
  • I wonder if they haven't fixt the sharing bug.  I need to shut off wifi to activate connection sharing.
  • Doh, read the gotchas in teh release notes.  Hmmm. 
  • Lots of phones drop your WiFi connection to create their own hotspot.
  • wow , finally windows 10 build rolls out
  • Let's get the update started!! At last...
  • I wonder how stable is it as I am bored and feel like updating my Lumia 1520.
  • Can you put it on a 1520? I keep hearing you can't.
  • I am downloading it right now. Will keep you guys updated
  • I've been running the preview on mine since the beginning
  • It's on my 1520 and running fine
  • Failed to install on my 1520. 920 install went well.
  • Cant update to build 15012.My update got stucked at 0%. Even after restarting the phone it shoes downloading 0%.Please help. I am using Lumia 920 windows 10 build 10166
  • Amem
  • Late night
  • Got my MBBS finals tomm.... Hell wit the exam.... I need to get this build now!!
  • This can wait.. be wise.
  • Good luck! Do both well!
  • All the best
  • Don't. You'll end up wasting the night. Save the build for later.
  • hope this doesn't take forever! gotta get to work soon!
  • Does it handle HTC 8X ?
  • I wanna know too :'(
  • No. No new phones for this build.
  • WE WANT LANDSCAPE MODE ON 5.5"+ PHABLEEEETS
  • Or even 5" phones. Let's not leave out the Icon/930...
  • I'm thinking about jumping in now with the build being as advanced as it is now. This would be on my daily driver. Any opinions on that? Does it seem stable enough? (knowing it just released)
  • The last one I put on my daily driver and regretted it. First couple of days seemed ok, but far too many hangs and crashes to be viable. I'm tempted again with this build but if your phone is vital to you (eg. for work emails) then I'd say hang fire. Maybe try it over a weekend as you can roll back if you find it's not stable enough for you.
  • I have the last build on my icon, so yup its stable. I'm about to download this build now.
  • It depends on your phone and firmware cz im running this on my lumia 920 as daily driver and it's quite good except some overheat and battery drain and from what I heard the denim firmware doesn't go well with win 10 mobile and i have cyan
  • I wouldn't if I were you unless you can manage to live with your start screen not loading consistently, gmail not syncing and apps, that used to be reliable, crashing randomly.
  • I am downloading it for my L1520. The last build was solid for me except for onedrive not syncing my photos/videos (I have done hardreset several times)
  • Tomorrow can't work 100%. 20% work 80% staring "new phone".
  • Are u kidding me
  • Does it work with HTC 8x?
  • After 5 minutes still on 0%. :(  
  • Check your Battery.. Needs to be at least 40%
  • Hells yeah...
  • Downloading @ 50 mbps.. Yeah!
  • Installing..!
  • You broadband??
  • yes. start download but it seems to already locked at 0%
  • Damn video playback is broken? Just when is started playing back in HD on mobile. Posted via Windows Phone Central App because this phone waa closer to me.
  • Yeah, wondering if I should take the plunge after running 10166 in my 640XL, but Riker back to 8.1 because of battery drain and couple smaller glitches... I'll wait til I see some more info and feedback about it I think.
  • Looks like there are more new issues than fixes in this build
  • What issues have u noticed pls do let us know
  • Haven't downloaded it yet but the blog post by Microsoft(http://blogs.windows.com/bloggingwindows/2015/08/12/announcing-windows-1...) doesn't sound good. It mentions some serious issues.
  • Thank you. I probably would have installed on my 2nd phone without reading the issues as it's not a deal breaker if it's flaky. However I'm currently using it abroad with a foreign sim as a Mobile hotspot which appears to be broken. That would have messed up my next 10 days ;)
  • Maybe do some research before commenting. Gabe has already said there are over 2000 fixes in this build. The list u saw was a short one of some of the most reported ones.
  • Maybe do some research before commenting. Gabe has already said there are over 2000 fixes in this build. The list u saw was a short one of some of the most reported ones.
  • Finally!!
  • Samsung Ativ S?
  • Nope, no new devices. I've been waiting for them to add the S and S Neo as well.
  • Just edit registry to mask your phone as some Lumia. I've done that when I had Ativ.
  • That's nice but when they will be released for the all the phones? I've BLU WIN HD really good phone but will be awesome with
    W-10
  • I gave up hope waiting for it on my Blu win HD LTE. Blu isnt giving microsoft the 8.1 restore files. I have a feeling that we wont be getting windows 10 for a while after release. Im gonna sell my Blu win HD lte and buy a lumia.
  • Really? That is so nasty :( MS need to support all phones for the good of the ecosystem
  • Its installing for me know on my att 1520. Hopefully this build is better then the last.
  • I've been waiting so anxiously !!!! :D
  • 0x80244019 error on search for updates !!!!
  • Same here any solutions
  • Same here, you have an solution ??
  • Showing 10166.. Do i hv to dwnld that first????
  • same on my 1020..wtf???  
  • Hv to reset phn to dismiss this update notification then hv to recheck!! Ny odr way to do it???
  • Same ? I have. I'm on L1520 8.1 update w/denim
  • Yup
  • have to install 10166 first then 105xx. Should have been able to install newest directly from 8.1.
  • hmm, known issues: Mobile hotspot doesn’t work in this build. When sharing the Internet from your phone using Mobile Hotspot, devices will fail to get a valid IP address from your phone and will show no internet access.
      Two-factor authentication for your MSA with a phone number doesn’t work in this build. If you reset your phone and go through the first run experience, you won’t be able to input more than 2 characters for validating phone or text authentication. If you have a secondary email for two-factor authentication – you can choose that. As a workaround, add secondary email for two-factor authentication.
      Some phones might spend a long time in the post update migration experience – just let the phone sit and it should complete this migration.
      Apps that use background audio such as Groove, Podcast, Pandora, etc. will crash when launching after receiving an app update from the Store. Rebooting the device will resolve this issue.
      Some phones with a large number of tiles pinned to the Start screen may get stuck in a state where the device shows “Loading…”; the device will need to be reset or rolled back to Windows Phone 8.1 using Windows Phone Recovery Tool.
      Some apps may fail to update through the Store with the error code 0x80073cf9; uninstalling the application and reinstalling it will resolve this issue.
      The Movies & TV app will not work in this build (video playback is currently broken).
  • Waiting for the next build then... Thanks
  • Thanks for this. Will pass on this too. So sad because I want to try it.
  • Changed to fast ring from slow ring.. Started downloading!
  • Installing now!!!
  • Let the testers comments BEGIN! I played with 10166, but count handle the black screen from phone calls. I may jump on this and stick with it.
  • New build for my 930 = 930 running at 1000000 degrees and might need to be used in a fridge ;-)
  • I literally put my L930 wit win10 in freezer for a min or so, everytym after i use wireless charging.... I cud even make omelette even jus after playing crossy road
  • My 1520 is already in the installation process... Really hoping Groove music is getting an update to support the pass
  • Yes! That's a bug issue.... Do you also have an issue with the app force closing, then not wanting to open back up?
  • Movies & TV not working: I dont use it by the way. This marks the first time Gabriel replied to me in Twitter. :)
  • TESTING PREVIEW ON MY 635 , DISNEY CHANNEL APP AND MORE WORKS PERFECT
  • From jhcopp on Reddit:   We’ve made quite a few improvements since the last build, but here are a few things that we fixed that were frequently reported by Insiders: •General improvement in overall stability and performance. •You can now set the Lock screen and background image from within the Photos app. •We fixed an issue where apps installed on SD cards weren’t working after a reboot. •We have improved Latvian and Chinese inputs. •We have made improvements to the Kid’s Corner tile layout. •We have improved reliability of Data Sense notifications. •Modified Shape Writing algorithm to be less aggressive in suggesting contact names over common words. •Resolved an issue where Camera would not launch when the phone was locked. •We fixed an issue where notifications for incoming text messages weren’t appearing. •We fixed an issue where the touch screen wouldn’t be responsive after ending a phone call on some devices. •And we fixed an issue where folder tiles have obviously overlapping text. We do have a few known issues for you to take note of for this build: •Mobile hotspot doesn’t work in this build. When sharing the Internet from your phone using Mobile Hotspot, devices will fail to get a valid IP address from your phone and will show no internet access. •Two-factor authentication for your MSA with a phone number doesn’t work in this build. If you reset your phone and go through the first run experience, you won’t be able to input more than 2 characters for validating phone or text authentication. If you have a secondary email for two-factor authentication – you can choose that. As a workaround, add secondary email for two-factor authentication. •Some phones might spend a long time in the post update migration experience – just let the phone sit and it should complete this migration. •Apps that use background audio such as Groove, Podcast, Pandora, etc. will crash when launching after receiving an app update from the Store. Rebooting the device will resolve this issue. •Some phones with a large number of tiles pinned to the Start screen may get stuck in a state where the device shows “Loading…”; the device will need to be reset or rolled back to Windows Phone 8.1 using Windows Phone Recovery Tool. •Some apps may fail to update through the Store with the error code 0x80073cf9; uninstalling the application and reinstalling it will resolve this issue. •The Movies & TV app will not work in this build (video playback is currently broken). One other note is that the Insider Hub is not yet included in the new build. We are working to bring this back into new flights soon. Remember – be sure to check the Store and grab the latest app updates from there too, as there have been lots of improvements to apps since the last build.
  • Thanks for notifying :)
  • Good post. I'll wait until the next build. My 1520.3 is running just fine on 10166.
  • PLEASE let me have a reliable start screen...PLEASE EDIT: I just saw this, "Some phones with a large number of tiles pinned to the Start screen may get stuck in a state where the device shows “Loading…”; the device will need to be reset or rolled back to Windows Phone 8.1 using Windows Phone Recovery Tool." WHY is this so hard for them to fix? It's been a problem ever since 10080! I shouldn't have to limit my start screen for your code to work correctly, especially since 7 and 8.1 don't crash.
  • This was the main reason for me to switch from slow to fast but after reading the known issues, im guessing were stuck with this which boggles my mind as to why they didnt resolve it but since they mention large number of tiles pinned, maybe its best we unpin the unnecessary ones and pin them back later.
  • My anger with this issue is, it fundamentally changes how I interact with my phone and it's the antithesis of the modern Windows design story that they've sold us on since the introduction of WP7. If this is going to be a problem going forward, they need to come up with a solution and fast. Whether it be "pages" or "virtual start screens" (akin to virtual desktops) to artificially limit how many tiles are pinned and rendered, it needs to happen within the next 1 or 2 builds.
  • While it's irritating that we have this issue on tech preview, im certain by the final build it will be sorted. Since its officially been addressed as an issue, I'm guessing the next update will solve this and by the sounds of things we will be receiving quicker updates from now on, so hopefully it will be solved sooner than expected.
  • You're right, this is the first time that they've publicly aknowledged this bug exist, so hopefully it's a top priority now.
  • There ya go. Glad you found the silver lining. It's just a preview build afterall.
  • I wonder if they have left this in by design - to ensure "Joe Public" doesnt go loading it and subsequently not contribute useful data / insider feedback (?) 
  • Strange, I never had this issue on any build?
  • Any idea of the size of update? I need to know if i should buy bandwidth or my 512 kbps connection will do it!
  • Mine says 292 MB
  • Damn, my daughter took my test Phone with her on vacation. I'll have to wait almost 2 weeks to see the new build. Bugger.
  • Ask her to update and to post a hands on video on Youtube for you. :)
     
  • Lol i swear people on windowscentral come up with the darnedest things
  • amazing
  • Error: 80072f8f when checking for updates....#rats
  • Update: Hard reset fixed the error.  Pulling down 10512 now!
  • uggg. I was afraid that was going to be the answer. Anyone else have this error and have a different solution?
  • yep... that did it. Installing now! Woohoo!
  • Dammit..... If i must.....
  • Downloading now! #cantwait
  • If I want it on my Main 930 Smartphone... Is this OS already good and stable enough that I can install it :)
  • Yes.. It's fine... Some guys listed know bugs above.
  • And still with this issues. FAIL The Movies & TV app will not work in this build (video playback is currently broken).
  • Sorry, but wut is fast ring?
  • Now a days it's a new topic of saecasm :D
  • If you are willing to download the preview versions, there are two rings: fast and slow. Fast gets the updates first, but likely have more problems. After some time when they fix bugs, Microsoft releases to the slow ring which will have a more stable version to install. Today's update is going to the fast ring
  • I still want to see a use for "Swiping right", but can't see that we will ever get that.
  • Maybe that's an Android patent. It wouold surely be helpful to have it like Android and not have to reach for the hamburger menu button all the time.
  • I hope it fix the start screen constant loading after restart on my HTC One M8?
  • My cellphone stopped working :( 3rd that stopped turning on and I can't test this build :(
  • Any new features except stability?? As the build number jump is so much... :D
  • wow on it now
  • Is it stable?
  • can someone tell me if  the mail app has a unified inbox.  A inbox that shows aLL MY MAIL FROM ALL MY ACOUNTS IN 1 GO?
  • No
  • Not even a linked one, like in WP 8.1, and no way to turn off "Conversation" in the mail app.
  • I cant update, getting that there was a problem updating error message.
  • Is it stable?
  • No, it's not!
  • How about posting a video, or writing a detailed explanation of why it is not stable? It's not enough to say it's not just based on "know issues".
  • Send him his paycheck, and he'll get right on it for you.
  • I hope bluetooth is better in this build - I don't know how many times a text came and alerted me via the car radio, only for it to get stuck into limbo land for a solid 5 minutes.
  • Well, maybe next year. 8.1 rocks.
  • Switching to Slow Ring. The current build is a but glitchy, but still workable, and I just don't know about this build. Gonna wait for a bit
  • I'm only seeing fast ring when I go into the Insider app. Weird. Was going to go to this build, but think I might hold off. Enjoying my 640XL at the moment, don't really want to go back to my iPhone if things go south with the update. Don't have the time to muck around going back at the moment.
  • What are the changes or tweaks?
  • After 25 minutes still on 0%. :(  
  • Me too. ¿Any idea?
  • Is exchange email well supported in this build?
  • Exchange email worked fine in 10166, from Exchange 2010 and Office 365 (I have accounts on both),....
  • error while checking for updates( 0x80244019) any fix????
  • Downloading stoped at 0% only????......
  • Lumia 930?
  • Size of update
  • Any suggestions plz.....
  • No htc 8x support yet
  • I just checked. Now I have hard reset because it show 10166 as the update. I'm on 8.1 Update w/denim. Not a big deal this is my test L1520. I just hard resetted it in anticipation of 10512.
  • Anyone who has upgraded to this build on a 512MB RAM Device?
  • Some additional info from Gabe Aul mentioned to users on Twitter: - We've fixed more than 2K things since 10166, just listed a few top ones that Insiders reported.
    - audio apps will work, Movies & TV has playback probs. Shouldn't affect 3rd party apps  
  • They probably should've added that "Shouldn't affect 3rd party apps" to the official changelog before it freaked us all out.
  • And my phone turned into a marble.
  • Yh 930
  • Anyone trying this on a lumia 1020? How is the performance?
  • Ido , ill teel you when finish
  • Doesn't feel much different to Th previous build. Going to do a hard reset soon
  • Same here, doing a hard reset now on my 1020
  • Any idea about the size of this build?
  • not sure on the size but it was pretty quick install
  • man i hope cortana works better with bt in car  
  • Does it work with HTC 8x
  • No, it does not.
  • Would someone please tell me if call history works. i stopped using the developer preview a couple builds ago because no call history.
  • Call history was working in build 10166 on my L1520, I'm currently stuck at 0% so I can't say anything about the new build.
  • Call history working here (L930)
  • call history worked in the last build (10166) and is working with this build on my L1020
  • Stuck at 0%
  • Some serious showstopper bugs in this build. Ilk hold off updating for as long as I can.
  • Guys do I need to roll back to 8.1 before upgrading to w10? Am currently on build 10166 or should I upgrade straight away? Help please
  • No need of rolling back .. You can update straight forward..
  • So... Guys honestly... Should I try this build m? Am on 8.1 Lumia 830
  • Can anyone please help me with is 'There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x80244019)'
    Using a lumia 930
  • I was getting the same error with lumia 930. Hard Reset fixed it. Now I'm downloading the new build.
  • thanks  
  • Can anyone tell me hows the battery life in this build???
  • 0% do i need 4g?
  • Do you guys think 23 pinned tiles is a big number? I'm afraid of this possible bug
  • I had all my games in a folder on my desktop (about 45 Xbox games) never mind all my normal tiles. unpinned all my games, I can add them back alter if i need to... Not sure what Microsoft lables as a large amount of tiles, could be 20, could be 90, no idea...
  • Desktop? You realized this is about phones, right?
  • Can anyone update how it's working in the 1520?? Thanks :)
  • Wow I have been waiting for weeks for this build and the first bug listed is all it takes for me to skip this build. How does Microsoft put out a build with worse builds than the last
    Thanks Obama
  • When you add/fix things, you tend to break some other thing. That is development.
  • I realize this is a preview build with bugs however every new build should improve on the last build not have worse bugs and bugs that were fixed 2 builds ago are back
  • This is how software development works. Expect lots of bugs, including repeat bugs, until the team transitions into the bug-fixing/polish phase just prior to release.
  • Same here :(
  • Been using build 10166 for a month, too bad after looking forward to a new build I have to roll back to 8.1 to prevent receiving it.
  • All you really need to do is to switch to the Slow Ring if you don't want this release, no need to go back to 8.1 for that reason. That's what I have done since I don't want to do without having my phone as a mobile hotspot. That's my current show stopper together with the fact that they do not appear to have fixed my biggest current problem, the slow loading start screen. Big issues, as I use this on my daily driver.
  • They fixed over 2000 things in the latest build. A few things break when you do that. Same thing happened with W10 before the RTM.
  • Ha!
  • downloading now!
  • Does Hey Cortana work in this build?
  • Best birthday present i got today
  • Happy Birthday fellow Leo mine was Monday :)
  • Happy birthday to you both :)
  • Can't decide whether I should upgrade or not.. Currently I am on build 10166.. Help me guys..!
  • Can't download now showing me error code
  • #HardReset
  • go for it, anyway  some day you will have to  , so why  wait?
  • I won't be going to it because if the way that they have implemented OneDrive in Windows 10.
  • Cant believe im doing this afgain lol hope the email app works at least this time, but roll back is so easy on these phones if needed.
  • and no luv for the samsung ative again. I wish i still had my awsome 920 but, yea droped it a few time creating too many earth quakes here and there and the gov took it away saying it was a W.M.D.
  • I'm seeing there's problem installing update t try later is any one experiencing the same thing
  • #HardReset
  • Downloading now
  • Maybe its good to note that an upgrade must be initiated from build 10166, there is no direct upgrade path from 8.1
  • All the above. Can't read all the posts. Will triage in a couple of days to sort through the survivors.
    Then maybe.
    L1520.3
  • Does  anyone noticed that the leyend "not for resale"  its gone now? should this  will problably be the public  version?
  • It sure won't be but I just saw it and I'm genuinely terrified about how W10m will end up going RTM :S
  • SO, on 8.1, , waited till this was out, Saw Gabe's tweet, saw this post here, Then I setup the Insider app, and set to FAST RING, reboot phone, take update....It took down 10166...WTF ????? Am I the only one with this issue  ?
  • No you are not the only one. I am in the same boat. I figured I might as well upgrade to 166 and then see if I get the 512. I just reset my phone this morning in anticipation of the 512 release. its not my primary phone so not too big of a deal for me. I wish the check for update could have one more step before MS shoves the forced update so that you could make one final check before committing.
  • Not a single new feature but many new bugs. Wow.
  • Even after a hard reset? Wow. Other than the listed bugs Gabe has described, what else are finding?
  • Size of update
  • I think that known issues list is bigger than new features.. :P
    I'm staying put for the time being @8.1 as Hotspot function is essential for me.
  • The hotspot function is a deal breaker for me with this build. If they announce a new build that fixes it soon, I'll install it right away to give feedback. But I'm not going to install something that doesn't have the feature I use most with my Surface Pro 3. Maybe on a secondary device but I was using it as daily driver to provide the most feedback possible. Oh well.
  • What is the download size??
  • It says that movies and tv wont work in this build BUT I just updated to it and its playing my tv shows.
  • Great news dear.. Now I'm upgrading
  • They didn't say that movies and tv won't work, they said that, "The Movies & TV app will not work in this build (video playback is currently broken)". Are you using the Movie & TV app to view your TV shows?
  • What is the size of update ?
  • Stuck at 0%... Fingers crossed
  • An update  and they can´t fix the frustrating resuming time to load the start screen  ... not good lumia  1020  
  • Installed as my daily driver Lumia 930. No problems so far. Installation was flawless, all tiles are still on my start screen. Did not do a hard reset. Will wait a day to do so if necessary.
  • The "Not For Resale" watermark is removed when the phone is restarted.
  • Great
  • worth installing wp10 to lumia 520? :|
    Please help
  • What is the size of this build??
  • 346 units bigger that 10166. but worth it. ;)
  • Does anyone noticed the "not  for resale " leyend  at restart  is  gone?
  • Yep
  • Installing, it's too bad tethering doesn't work, but it's not like it worked in 10166 either.
  • It worked on my 1020, most of the time.
  • Hmm, it worked once ever on my 1020, and failed the rest of the time. Weird.
  • It didn't on my 820. Not once.
  • If this is more stable I might give it a shot on my Icon. I liked the last build on my 635 it was a little too unstable for my Icon which I use as my main phone. Hope this is good enough.
  • Again, lumia  camera is  gone
  • Thank god there is an update for store in this build!
  • Not here. Store version still 2015.7.18.
  • Aaaaaa.... Shut up!! I'm downloading process..
  • Gotta say.... Much faster than the previous build.
  • Just looked at Phone update on my 920 and saw the update, just picked up my 930 hoping to break the news but to late :)
  • Installing it now... On another subject can someone tell Microsoft to get rid of the polka dots on the people hub; I have to keep mine small just so I don't have to look at them.
  • Yeah.. The squared flip tiles are better
  • Use the Feedback app.
  • Lol,unable to download, stucked at 0%
  • Any 640 xls updated?
  • If anyone has this problem - Check here below http://answers.microsoft.com/en-us/insider/forum/insider_wintp-insider_i...
  • Everytime i upgrade my OS, from 8.1 to the first windows 10 TP, it was always rough in the first few days. Same when i upgraded to 10166, but after few days the performance got better and better. Now this build that I have (10166), is very smooth and almost no bug. I
  • Does Bluetooth audio work?
  • Do any one know where is hay Cortana
  • Whn did the upgrade path paragraph get put into the article? I don't think it was always there
  • I updated my Lumia 920 from 10166 to 10512. It really a worthy upgrade. All screens react faster. Still room for improvement on UI speed. Still having problems connecting exchange account with the mail app. There were updates to Store, Office apps, Groove music etc. The folder tiles are much neater and smoother. While switching off the phone, it says Don't forget and displays the calendar item.
  • Aaaaaaaand...my Icon is now updated, hmmm!
  • First thing I noticed is that all of my settings were intact and ready to roll after the update. There wasn't even any strange moving around of the tiles.
  • I"m on 10166. I want to do a hard reset for this new build with an SD wipe. What is the best procedure?  Install the update then hard reset or hard reset first. 
  • Reset before update.
  • Lumia developer is stupid, they are bringing window 10 from 2 year. Hahaha
  • Mobile Hotspot fail ruined this update for me sadly.. Was hoping this would have made my 1520 more stable. Tired of random restarts and touch unresponsiveness resulting in force restart to regain touch. This is after multiple hars resets So definitely the build. 8.1 doesn't have this issue on this phone. Oh well, I wonder how many more weeks before they fix Mobile hotspot. I thought fast ring would be way more frequent updates and figured by now, things like Mobile Hotspot wouldn't be broken. Can't have everything lol.
  • Dear God those polka dots in the people tile...who looked at those and said 'Approved'.
  • I was expecting something better with this big jump from build 10166 to build 10512
  • 10152 ;p
  • They are just numbers to make us feel there's alot on this build, fingers crossed lets hope they come out with something crisp in their next one
  • My 1520 fell again today... Its almost to the point of black out... Come on MSFT, release something better than the 640 xl
  • Just installed it on my 1520 from build 10166.
    The install process was surprisingly brisk for me. From download to completion took less than 1 hour. But the Movie & TV app issue is real. Also discovered that the account setting now display your name instead Local Account. Still fiddling with it. The known issues are not a bummer issues at the moment for me... So far :)
  • Great to hear that the upgrade experience was that good. Like you, the Movie & TV app would not be an issue for me but the Mobile Hotspot issue would. I am sure we would all appreciate hearing of all other performance improvements that you experience.
  • Stuck with the Spinning wheels for the past one hour :| Any idea how much time it takes to complete the installation..
  • I installed in about one hour or so from start to finish without any difficulty.
  • To anyone who installed it successfully, can you set custom ringtones on this build????
  • No
  • I'm pretty sure you can. Also, Melodia is working again. I successfully saved a ringtone and it worked.. Actually...Just set my ringtone from Windows Phone 8.1 and it plays perfectly when getting calls.
  • New features will come? Im a little worried!
  • Why ?
  • In the previous 10166 build the alarm did not play any sound. On scheduled time the alarm itself appeared to the notification center, but no sound was played. At least this bug seems to be fixed in this build :)
  • Does anyone know if this build has openvpn support?
  • One of the first things I check, looks no different than previous builds
  • Thanks for your response. I really really really hope msft get this right but so far it's... Hmmm... I'm really hoping they get it together.
  • this is odd. under my Phone Updates section > Advanced, there is no option to switch rings. When i check for updates nothing is available. Running the most recent update. Fast Ring.
  • This updated is a total mess......I guess we are moving backward wtf build 10166 was 100 better than this new build, I rather skip this build
  • Updated on my test 640, no issues upgrading. My video seems to work fine too. Overall seems quite quick and no overheating problems.
  • The update is not yet available for 1520
  • For me it is EXACTLY like build 10166 I had before..Same bugs, same speed without any noticable performance gains or anything remotely good. Well,exept now the lockscreen take more than 10 seconds to throw you at the start no matter where you was before!   If they have 1-2 months till release, I am almost sure that the end product will be underwelming and it will make the departure of most people hanging with this os waiting for different attitude from MS, a whole lot easier..  
  • no overheating and no problem yet . for lumia 930
  • If this is the feature complete state of things, then it should be named WP8.2! Make no mistake, I will upgrade and stay with WP, but MSFT knew completely well that W10M was their last chance to catch up in the market by blowing the competing platforms away with features. Not gonna happen, by a long shot. Even if I count the continuum rubbish as a "feature", I'm still stunned how outright butt-ugly and inconsistent a UI can get. W10M should really be tablet mode, compressed, with the same gestures. Why the space-unconstrained desktop gets multiple start screens while W10M retains crappy Kids corner is beyond me. Groove is still a piece of crap, the website being much handier. Then, 2015 and still no gapless playback. Seems still not to be there in W10M, so will this feature come at launch as announced or later?
  • Anyone doing their preview on HTC M8s? I haven't seen anyone here post about it. I tried the older builds and I always had to flash it back.
  • I am, but am hesitant to update to 10512 due to all the negative feedback. On the other hand, I am sick of my screen freezing and not receiving all my texts. HTC One M8
  • This won't update on my 640, just shows an error. I'm nearly convinced to jump back to Android!
  • Lumia 1520 confirmed :3
  • My L1520 updated fine, little faster,smoother. No changes that I have noticed after 1hour of use.
  • What's happening I just updated but I got build 10166
  • Same here
  • Install the windows insider app and then check for an update
  • I've tried for 3 weeks to upgrade to these Pre Release versions but it keeps failing.  It downloads and installs it but when it reboots i get the installation error :(  
  • Any one tell me after this build can I restore my purchased app.....because in previous update I was unable to restore my purchased app
  • Look in 'My Library' from the Store hamburger menu. They are all there....
  • Over a month and this is what was release on real. I know it's beta software and I have nerve complain but this is disappointing. They need to get one out by next week to make up for this debacle.
  • Nicely said, @least a new feature has to be in the pipeline, performance is key but this is certainly not worth it after a whole fucking month, only MS knows what was on the build that wasn't released earlier
  • I'm undecided. On one hand I need the new update for develeopment (UWP projects built with the release version of the SDK require build 10240 or higher, so I can't deploy to my phone running 10166) but on the other hand I also use Mobile Hotspot a lot, and that doesn't work in the new build.   I'll sleep on it and decide in the morning, I think.
  • The worst release since...
  • Focusing on core quality - all nice and dandy, but in case Microsoft has not noticed: Usability is absolutely atrocious! Abysmal! Why on earth did they even start this dumb feedback program if they don't give a shit about the thousands of people telling them to at least copy android's swipe from left gesture to access their stupidly placed hamburger menu? Heck, because they can't - it is such an inconsistent mess that in some places still uses pivots so they cannot even do that. For the sake of having the same elements on the desktop and phone (smart) and in the exact same positions (dumb) they created one of the worst user experiences I've had to whiteness in recent years. It is such a mess... This needs fixing on the same priority as their core work for for crying out loud. I used to love this UI - before they butchered it into this disaster...
  • Had to do the fridge mode to install on a 1520, hope they fix the overheating soon!
  • There's still no changes to what we clamoured for, bugs bugs and more bugs, less than two months to launch and this whole idea is still in shambles. Where's the wow factor to woo people away from their boring Android, cant even convince a friend to get a Windows phone yet, I hope and just hope there's alot under MS hood, windows phone wont make it if there's no compelling feature and UI tweaks to the OS apart front continuum that wont get to the hands of many as it will be available on high end device alone. C'mon MS something has to catch the eye of a new user, is that too much to ask
  • This build still runs like trash on a 920. I am just going to rollback to 8 until the new flagships come out.
  • The store has a new update.
  • WT??? My phone updated all the way though and after updating apps it said it had to restart and is back at the sprocket wheels, is there like two parts to this update or something?
  • @wizzackr: I 100% agree with you. I feel that we went backwards losing some features to gain others. Very incomplete for something this close to release! Shit, I wanna have all the freakin features android and IOS have! I've been loyal since the beginning and god im losing patience. And yes, this feedback bullshit it workin! It seems we're not getting what could make this OS above and beyond the other guys. And yes I wanna recommended it to my friends as well! C'mon Microsoft, get it together! Idc what anybody say! I am paying customer like every other Windows phone user and im entitled to my opinion. Please make us completely happy when this is said and done Microsoft! Please god save us LOL
  • I don't understand why the hamburger menu has to be top left, what is the 3 dots at the bottom for?
  • Good question - and one that Microsoft doesn't seem to care to answer. There's hamburgers, pivots and three dots bottom right - they hide settings wherever they feel appropriate. And the user gets to search by trial and error. It is one hideously discombobulated design language!
  • *isn't working
  • Got it, but wondering what's changed...
  • So the install completed on my Lumia 520 (not my daily driver) and was slow after the upgrade, so I did the usual full reset. After going through the initial setup, all I have on my start screen is Skype, Facebook, Cortana, and a folder containing the File Explorer. In all apps, there is no trace of the Store app, so I can't get to the store to even download apps. Anyone else have this experience?
  • Rock on!
  • Everything still the same- outlook doesnt work properly, locksreen settings dont work, video camera still messed up. We all know why- peter griffin is in charge of wp10.
  • AND GET RID OF KIDS CORNER! ANOTHER WORTHLESS FEATURE THAT SERVES NO FUCKIN PURPOSE!! THIS SHIT HAVE BEEN IN DEVELOPMENT SO DAMN LONG AND WE DIDNT GET MUCH FURTHER ON FEATURES. DAMN
  • Ive got a lot of dead pixels since this build. How is this possible. I had no problems with windows phone 8.
    Could it be a problem with 10512?
  • All you thinking that this is final, like you been whining like godfockers, ooo ms is soo bad not releasing in time.. Fuck off and get out of the insiders. This one seems faster:)
  • This has rendered my 920 utterly useless.  Maybe wait untill the slow ring release?  Going back to wp 8.1 :(
  • Yeah, just like me, I am so pissed cos my AMD Duron is really not taking windows 10 very well
  • It's not Windows 10 ready.
  • Just updated. I got same performance as the old build. Hoping to find new features hidden.
  • Completely useless and total waste of time, I could fart up a better os in that time and i know nothing about programming.
  • Your comment is useless so shut the pie and lock the a hole
  • Your phone is not on the list.
  • If you don't like this build. Just wait for slow ring!!! simple. quit complaining like babies. Jesus Christ !
  • This!!
  • Yup, and im gonna complain till shit gets fixed!! I'm a loyal paying customer like everyone here!
  • Ur all uselless wan.ers for praising this build, its shit and no different from last build and microsoft should be ashamed for for treating u idiots for what u are.
  • Had active while got error code saying try again later?
  • Seems faster. :D
  • Stuck at 0%
  • I like how you've included all the Related Guides and How To's links in here in one place.
  • Lol, update ready but battery at 39% and no charger :/
  • This build runs a lot faster on my old 920.
  • My unlocked dual sim 640 xl is alot smoother on new build. I was on 10166 and upgraded right from the insider app. My radar (ad free) now works on live tile! Start screen no longer stutters when scrolling, smooth as 8.1, still no favorites on photos, just random pics on live tile. Still have to check Bluetooth with Cortana. It did not reply to texts on previous build.
  • I'm stuck on 0% after an hour!  1520
  • Oh! finaly its started :)
  • I'm at stuck at 1%. Slow :/
  • Now at 43% looks long for 1520 att.
  • What's new in this build?  
  • micoach app is  missing
  • Ever fix the battery standby time?
  • I have 10149 on my L920 but says that it's up to date (didn't realise I already missed the update to 10166), and I have no option to change from slow ring (which I assume I am on) to fast ring. How can I update?
  • Still waiting on it to download on my 1520. It's real slow at 1%
  • Is it need hard reset or not?
  • This is flawless on my 640XL. Took a long time to download and install, but much faster and overall not one issue to be had going from previous to 10512!
  • I updated my 1520 to the latest build and unable to find any real difference to the previous build. But, previous build on my phone was pretty stable anyway. Feature wise, I don't think they have added anything new. Looks more of a backend changes for optimization. For people complaining why no new features or having issues even after a month, remember, there was W10 desktop release. Hence, I would expect them to give priority to the desktop and then concentrate on mobile OS. And moreover, this is still a work in progress. And my phone isn't my daily driver, so even if there are issues, it is not a show stopper for me.
  • At Bat app plays video with new build. 640 XL!
  • Same here! Microsoft health works! Bluetooth would not work and app would not open on 10166
  • Why is setting lockscreen and background wallpaper from photos app listed as a new feature when it was available already on build 10166?
  • Hi i have a 640,i keep getting this update error.
    Can anyone please help me,do I have to rollback to 8.1
    Some update files are missing or have problems. We'll try to download the update again later.
    Error code: (0x80070003
    Please let me know
  • The Most Anticipated Flagship Release in History. The Premium Windows 10 Mobile Device will SHOCK THE WORLD!!!!!!!!!
  • Cool! Now I'm ready for the next one
  • PREVIEW IS ONLY FOR TESTING AND FEEDBACK!! ITS NOT FOR YOUR PRIMARY DEVICE
  • GOING STRONG ON MY 635 I USE STRICTLY FOR PREVIEW
  • ON MY 640 POSTING COMMENTS WHILE IM TESTING THE BUILDS AND PROVIDING FEEDBACK ON MY 635.
  • PREVIEW ON 635 IS AWESOME!! GET LIKE ME. 8.1 ON MY 640 MY PRIMARY IS AWESOME! NO COMPLAINTS OVER HERE, IM TRUE TO THIS.
  • GIVE YOUR FEEDBACK TO MICROSOFT NOT WINDOWS CENTRAL THEY CAN DO NOTHING!
  •   Well, Cortana still a mess. Asking for directions, results cortana sending you to home screen, it no longers opens the Maps app like 8.1 does. Screen layout still horrible compared to 8.1.   This build feels more polished and some major bugs have been fixed, but for f**** sake, fix Cortana or just Import the 8.1 version.
  • Now into migrating my data step 18 of 24. So people with 1520s Be patient.
  • Custom ringtones works again ! Hooray ! :D 
  • Now running 10512.
  • THIS IS A MUST ON WINDOWS 10 MODILE Every Lumia user needs this, very convenient in a situation where you don’t want to make a separate contact profile. https://windowsphone.uservoice.com/forums/101801-feature-suggestions/suggestions/3195115-please-allow-custom-labels-for-phone-numbers-emai?tracking_code=1db4c0cbd29485ec7b2ca5d012152577  
  • Downloading now, Good luck to all !!!
  • Stuck at 43%......
  • Stuck at 43% since 4 hrs.................
  • Is OneDrive on Windows 10 Mobile any good. I hope it doesn't ask you to sync your folders to get at your files and is like the Windows 8.1 Mobile OneDrive and you can just use it as an extenion of the space on the phone. I have a 240 Gb folder that will not sync with my tablet or phone so I won't use Windows 10 OneDrive until they have it fixed,
  • I have Lumia 535.I updated it to build10166 about 2 weeks ago.today I check for update but it says your phone is updated.Tell me what I do.
  • You're probably on the slow ring. Uninstall the insider app then reinstall and chose fast ring this time
  • I have Lumia 535.I updated it to build10166 about 2 weeks ago.today I check for update but it says your phone is updated.Tell me what I do
  • I have Lumia 535.I updated it to build10166 about 2 weeks ago.today I check for update but it says your phone is updated.Tell me what I do!
  • Suck at 80% same still after 4 hours my current built 10166 on Lumia 620 how I can solve this many times reset cell
  • First upgrade where I haven't had to reset my 830 somewhere along the line - pleasantly surprised by that. Only issue I actually had was that Galaxy Trucker wouldn't update successfully and was in limbo so I couldn't uninstall it to try again for some time. I was finally able to get it in a state where it could be uninstalled and reinstalled and it worked after that. (Also cool as it just crashed in the last WP10 build.)  The bugs this time aren't a huge deal for me. I'm on AT&T so no mobile hotspot without paying for it anyway.  So far it runs pretty well, though the lock screen does take a while to show any info. It's usually not done refreshing by the time I unlock and get into the OS.
  • Checked for updates....... Unfortunately, no updates available for L520 in Nepal. P.S. I had signed up for the fast updates.   Local time: 2200 hours
  • Has anyone ever successfully updated "transfer my data" on a lumia icon?
  • I'm stuck at 43% while downloading this 10512 preview-build for Windows 10 Mobile Insiders! What do I need to do? Can someone help me?
  • I have observed a new feature, when you turn off your phone, usually in the past it just says "Goodbye". Now, if you have something important in your calendar like a friend's birthday, instead of "Goodbye", it will now tell you "Don't forget, it's ______ birthday"
  • I can't update, I keep getting error 0x80244019 whenever I try to check for updates since last week. Does anyone know any solutions to this? I can't seem to find any. I'm currently using a Lumia 635 and I'm in the fast ring.
  • Hard reset and try again
  • Hi friends i am not getting new preview steps done first go to 8.1 then tried and i got 10666 now tying to check updates but no update is available,india lumia 1320
  • Can I go 10.0.10149.0 > 10152? My 635 dont download 10166! =(
  • Ondrive sync never worked for me one any wp 10 builds on L640 and L1520. Sid multiple hardresets.
  • I find it's more stable then the previous ones. The screen doesn't hang on me after phone calls anymore, my bluetooth and having hands free calling and texting are back. I don't get the loading forever all the time. Some issues I have are I can't set a ringtone under contacts, where do I set a different tone for texts, facebook and etc.? Can you please make it easier to set music as a ringtone???  The Groove music app is sooooo much better then the xbox app it was before..... I can pick shuffle all :) I like the notification screens, and the new contact layouts, I do like the lttle circle pics, and there are just some really nice things on the build,  the future looks bright if MS sticks with the mobile platform. But please make it easier to set music as a ringtone or other tones. Hopefully the developers will now build the apps for mobile when they're doing the desktop/tablet apps!  
  • Sorry forgot to mention I'm on a HTC One M8
  • I try to update my 10166 to 10512. But, the update process stucked at 99%. I have waited for hours and it still. Does anyone have the same problem? How do/did you solve it? - Lumia 820 thanks
  • <p>can it update windows insider to original windows 10 update when win10 update available.</p>