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Windows Phone 8.1 Preview updated to version 12393

It’s just after 1PM ET, and Microsoft’s servers are blazing with a hot new update for Windows Phone 8.1. The update will bump the OS to version 8.10.12393.890 and it's about 21 MB in size, though what changes the update includes is currently not known. This is the second update to come out for Windows Phone 8.1. The first update for Windows Phone 8.1 came in mid-May and introduced battery improvements. 

Want to grab the update? Head into Settings > Phone Update > Check for updates to get the latest.

We’ll update this article as more information comes in!

Update: For some, the Windows Phone boot screen has now changed from left to right (as seen above) for some users, which matches the Lumia 630. Other previously had the boot screen on the right, so may not be new for some of you.

Thanks, everyone for the tips!

Daniel Rubino
Executive Editor

Daniel Rubino is the Executive Editor of Windows Central, head reviewer, podcast co-host, and analyst. He has been covering Microsoft here since 2007, back when this site was called WMExperts (and later Windows Phone Central). His interests include Windows, Microsoft Surface, laptops, next-gen computing, and arguing with people on the internet.

1000 Comments
  • Sweet, downloading and installing now.
  • Any changes?
  • It seems faster!!
  • C'mon...''IT SEEMS FASTER" is no a terminology everybody uses....becoming a common term with no meaning here nowadays...smh
  • That's the joke. Everything "seems faster" whenever anything is released anymore. Even if they tell us they intentionally slowed an application down for whatever reason it may be, the WPCentral community must claim that it's faster with every update. So, that said... it seems faster ;)
  • It's never even been a funny "joke".
  • grow a sense of humor, it is funny. 
  • Maybe the first 1000 times. Now it is just an anticipated and unoriginal annoyance.
  • It, indeed, was funny at first. Then it wasn't. Now it's freakin hilarious due to the reaction it gets. Humor is funny that way.
  • +925 Spot on. The original would have gone away ages ago if people wouldn't have reacted. Now it's almost sport to see how many "it isn't funny anymore" posts an article will get.
  • Yes it does seem faster LOL
  • Grow some maturity, it's stupid and old.
  • I think it's pretty funny :) It's defiantly more humorous than family guy.
  • Just like your mother!!!! #getWrecked
  • Wait till your girl friend tells you this.
  • Yes, it's funny.
  • Agree. It's old and fucking retarded.
  • I'm with you on this, it never was funny, now it's just stupid.
  • Regardless.
  • Nah, snappier is the lingo. Yeah, it's snappier, lol.
  • I believe the preferred nomenclature is "buttery smooth."
  • And who doesn't like butter?
  • So we have the real butter and Android can't believe its not butter.
  • ahahahahah you damn right  
  • I agree. All this "faster" BS has to stop. I have noticed that my 1520 is quicker, though. :-)
  • This as a whole was probably one of the dumbest conversations I have seen in a while.
  • Half way through the update, seems smarter. On a serious note, I love how these updates are coming at a fast rate. Wish they would do this with regular OS updates too. But I could see how the average person would get annoyed by the time it takes.
  • I just love the fact that we don't have to reconfigure out lock and start screens after each update. Love my start screen with 8.1.  
  • Yep, I love MS. Everything just works. Even using pre-release software, I've never even really had more than a small problem. LOVE IT
  • Don't you mean "snappier"?
  • Lol, never gets old
  • That's what she said...
  • Yes it does!
  • actually slower, and lags a lot
  • Quiet hours is now global and isn't Cortana restricted
  • +1020 THIS!!!!!!!!!!!
  • update, its not outside Cortana. :'(
  • Where do you find the setting?
  • At settings
  • Wow  
                            Much helpful      So settings
                      
                   Many quiet hours  wow
  • so doge!
  • The moment when i first saw the comment i see it as code indentation
  • Proof?
  • I'm downloading it now.
  • How do u get the update iam not able to get the update please help me iam using Lumia 525...
  • It shows in Settings, but says need to have Cortana in ON and Battery saver is OFF.
  • yeah, its not outside cortana. :(
  • Yep I get the same.
  • It was global in the second update. Nothing new.
  • Nope, it isn't
  • Screenshot from the first update of 8.1. https://onedrive.live.com/redir?resid=FC6BC9E562379BCA!129907&authkey=!A...
  • You do realize US Local settings aren't considered global? Global in term of the rest of the world...
  • Oh. I thought they meant that the link was never in the settings app.
  • LOL. Only America exists right? What? there are other countries!?!!
  • I loved the "Windows logo only" bootscreen. The new one ain't so cool
  • I just updated my Lumia 925 & it still has the teal Windows logo only, maybe its a region specific thing?
  • I don't have it on my ATIV S either, maybe a factory reset would change that
  • I'm experiencing this too on my Lumia 920. In the US
  • 925 owner here as well, I still have Windows Desktop's loading screen.
  • I hope so. I like the teal logo only screen.
  • Same here.
  • Actually, you're thinking of worldwide... =P
  • Are you sure? I cant find it.
  • Really? i guess i missed it then. Thanks for the fix mate
  • I don't see it in the 2nd update either
  • Same here in Mexico... no changes about that...
  • Not true.
  • on mine, still tells me to turn cortana on :( And, my startscreen still the single windows logo.
    so those changes aint for all
  • Yeah nothing new for me on my ATT 1020
  • Same here
  • No here
  • No, It is Not on unbranded 8X. Still "not available in this region"
  • Seems fa... Nah... :P
  • There's a good news for lumia 1520 owners.. Finally the drivers for the video card have been updated(i think so) games run very smooth with high frame rates... Before it is to hang like lagdroid now its super fast.... daniel plz update the article with this changelog.... Now am going to install asphalt 8 !!! yipeee UPDATE
    other changes include
    * Calender opens very fast, before it used to take like 1-2 sec to open.
    * The performance has increased beyond my expectaction. Before apps used to take 1-2 sec now its very zippy...
    * still quite hours doesnt show up unless cortana is on Definately microsoft is working really hard... am very happy thank you microsoft and thank you wpcentral for updating us... it was worth 21mb and was worth the while!!!!!
  • 1. i feel the screen response is better now, 2. 1520 became a little hot during the update process. 3. Whatsapp doesnt have the message now when you open the app.
  • Yup the screen response has been better now but my 1520 dint get hot during update and i used 3g data pack to download... and what message you used to get in whatsapp?? i dint get any previously 
  • Posting link posted by others earlier for Whatsapp message. i got this everytime i opened whatsapp. ============ http://www.wpcentral.com/whatsapp-returns-windows-phone-new-features Ridhwan Ismail says: Doesn't work with 8.1 for me?
    EDIT: nvm, it works fine now. It was just a warning message. COMES WITH BACKGROUNDS :D ==============
  • Not mines
  • Good. I was worried it would have mines. Mines are bad - especially land mines. Although, I wouldnt mind a gold mine.
  • I noticed that battery doesn't get hot anymore while playng games on my 928
  • Mine is still getting super hot!
  • Modern Combat 4 is still as laggy for me. Granted, I have an old 920, but I read that even the Snapdragon in this is capable of reaching frame rates like that of the 4s. Part of these type of improvements will have to come from Gameloft getting off their butt and quit lazy porting, but Direct X improvements are important as well.
  • If you change the background color to light than the numbers disappear in the calendar (week view)
  • What about the phantom taps? Is it gone now?
  • Same for the Lumia Icon! No more lag when playing games! Subway Surfers, Asphalt 8 and many others are quite smooth.
  • This description fits my L928 before AND after the update.
  • Same here, I never hag lag on any games
  • +1 Whatever has changed on the GFX end has made the games lag-free. I can finally play FIFA14 without any lag whatsoever. Loving this. Bring it on.
  • @GURU_1520 I have a 1520 myself, recently upgraded with AT&T here in the USA from my former Lumia 920.  I've installed the developers preview and have all the recent updates installed on my 1520. Have you noticed any "flakey" behavior in your 1520 relating to network connectivity? I used to connect to my employer's GUEST wireless network, and no matter where in the building I took my 920, it would keep the wireless connection open. Now with my 1520, I've noticed that once I connect to that same network with my 1520, it will drop the connection at times, whether I have Wi-Fi Sense on or off. It's not a big deal, but I don't like having to worry about whether I'm using my 4G data connection or using the Wi-Fi. Your experience?
  • you right about the video card update,the games are no longer laggy. thanks
  • Am I the only one haveing a slow experience with the last update?  Random freese ups.  As if the phone isn't working and then buttons stop working and then screen fully frezzes up.  So i hold down on power and volume controlls to do a reboot? I hope this update fixes this issue...  I hope it seams faster... edit - nokia lumia 1020
  • Had this happen once last week, UK. Hoping just a one off.
  • I've had this problem alot here the past week for some reason on my 1520 (ATT). Maybe this update will get it lined out.
  • I have seen it multiple times on my Icon.  When it does happen, my Icon gets pretty warm, like there is a hung process and then the battery power drops like a rock.  Usually I just hold the power button in until it shuts off.  Leave it off for awhile, turn it back on and the issues subsides.  It happens almost daily.
  • Guys its a beta ... When you get the Cyan official update with the firmare updates then
    you have the full update. We dont have the piece from nokia yet so intil we all do there may be a few quirks. Heres a easy explanation and its true for all platforms. Beta- is bleeding edge release version - leading edge couple of patches later -really quite stable Just pick the spot you can live with and be happy.
  • Good point Mark, but we are on Windows Phone partially because it is a rock-solid stable piece of software. We have got to keep them on their toes. I'm more than happy to gripe about it here with others to make sure that we keep that fire lit under MS's behind by inspiring each other to gripe about it directly to Microsoft. Not to mention developers. We complain to each other but seriously, use feedback to complain and request updates every once in awhile. Use other services, whatever it takes. But yeah, its beta/preview and we know that but they need to know where the problems lie so they can fix them.
  • I have to say that I have not had any problems so far since the update on my 928. I actually feel like the battery life is better than it has been since the original 8.1 update. It had originally dropped off significantly and now it's getting back up. I'll of course have to monitor this for longer than a day but we'll see how it goes. 
  • swizzlerz, i recently had the same experience. Randomly I'd get little lockups like that but it was very rarely. Only within the last month or so though. Which is odd since nothing but app updates have been released until today.
  • I've had my 928 freeze up on me as I am swyping more than once. Anyone else experience this ?
  • My phone freezes every morning and i am really sick of it. Only way to fix this is reboot. I am using ativ s, and if this isnt getting fixed, it will be no different to android...
  • I solved this by turning of wi-fi-sense
  • I get the same thing. Happens every morning. Only started to happen like a week ago or so. Are you charging your phone wirelessly or plugged in?  
  • ATIV S user - mine works fine. Have you tried a hard reset?
  • My 1020 was almost unusable after the last "update".  Unresponsive, constant freezing up , could not pull down notification bar and frequent need to reboot.  On the positive side, my battery lasted longer because I could barely use the phone.  Hope this update fixes it.
  • Update did nothing to fix my issues with my 1020.  After sitting idle awhile the notification bar does not resond.  Can't slide down.  Everything is slow and will just freeze up.  Have to reset to get it moving.  Eventually it just reverts back to my unresponsive 1020.
  • Same here ,from Guyana, South America
  • No quiet hours in Sweden either.
  • definitely not when updates around +1020
  • Have they brought back hubs yet?
  • Don't hold your breath on that one...
  • Glad they won't.
  • Ok here's one change i see in the update.. Hitting back from calendar doesn't close the app.. It just goes in the background..
  • Just tried that and you're right, odd....
  • It was like that since the update to 8.1. Certain apps only get suspended by the back button until you press the X.
  • Never happened with mine.. Even fb is suspended.. Apart from calendar, fb and settings page is showing the same behavior.. Have to hold "back" to show that they are suspended.. Positive thing is that the opens faster the 2nd time.. But not sure how it affects memory and battery
  • Closing of apps have become smoother. Now with a little downwards push the apps get closed.Unlike before.
  • Great. Love updates
  • Just did.....now whatsapp seems buggy
  • For me too little bit, watsapp needs more ux update.
  • Maybe preparing for these 8.1 updates/releases is part of why the app was pulled for a few days?
  • Yah notifications are all over the place
  • Did you do a restart? I had trouble with Xbox music as well until I restarted the phone
  • No issue with me on 1520, didn't get the warning message... Seems to work fine for me.
  • Whatsapp always was buggy in here
  • Not available in India? :(
  • I'm guessing, if you have the dev preview, you can get this.
  • Yup, Got it. Downloading
  • available to india also downloaded and now installing
  • its available already installed its around 21-30mb
  • It says my phone is upto date :/
  • If you've recently reset your phone (for any reason) go back into the Dev Preview App and set it to recieve updates again. More than likely that's the reason it isn't showing up.
  • Thanks, even I forgot about that
  • Yes.. I understood that when I didn't see preview app on my phone. Instaling 24%..
  • Yeah I had that same problem with the last update. I forgot to go re-activate my developer preview. 
  • Updated
  • available in India just updated lumia 630
  • Any remarkable changes on video or cam pics...
  • Available in India now. Downloading.
  • Nice, now we even get OS updates every month :D. Well done MS .
  • MS is calling these Dev preview releases but, in reality, they're pretty stable. I'm guessing that's what all those Android rollouts were as well, but they were only called them full releases?
  • That's exactly what I was thinking. I have had a Android based phone ever since the beginning, and even though they call them full releases, in all reality, they are only bug fixes, and there sure have been a lot of them. Sure new features are added, but then they are full of bugs, so a new version is released and so on and so on, etc... Now if MM, or MS, would fix the touch screen issues on my 1520, it would be PERFECT!
  • I have to second that. Love my 1520, but the sensitivity is all the way down and I still have the issue.
  • I am not getting the update..it is showing..error..
  • Turn off n on again. Lol
  • I got an error the first time I tried to update, on the second try it appears to be working fine. It's currently migrating my data.
  • Available in india....just updated... Nothing newer yet....bud fixes i guess....tip me if you guys find something new!!
  • Apple gate crasher :-D
  • Lol cool, for a change...
  • Go Microsoft Go !! Really glad to receive updates in such a short span.
  • +920
  • is quiet hours available on your phone without changing region means after update Quiet hours is available for you as global settings as region set to india
  • Hey quiet hours available in India also?????
    Haven't checked it
  • No... no quiet hours in India... its just a false news.
  • Just got it now downloading
  • Love Love Love
  • Please tell me you are making fun of Shingy. 
  • I hope this fixes everything the last update broke on my 1020.   Initial release: smooth as silk.  First update, lost text messages galore and terrible battery life.  I can forgive bad battery life, no tolerance for lost text messages that then randomly get sent out at 2:00 in the morning when my phone gets plugged in.   Just say no to spamming friends with an afternoon's worth of texts at the crack of dawn. 
  • Crazy. I havent had any of that on my 1020. I've had a few random hangs and long app resumes, but nothing that crazy. Good luck.
  • The long app resume times are ridiculous on my wife's 1520.
  • I got to playing with the settings, with double tap to wake off, the touch was more responsive, but I got the lag you mention, with it on, the lag was almost gone, but the touch would open up any app I had my finger even near.
  • Opposite of you. When I got Windows Phone 8.1 my battery life reduced to only 4 hours. After the first update it's even better than Windows Phone 8 at 2 days!
  • well strange my battery life was about 12 hours only after winows phone 8.1 after update 1 it reached to about 20 hours or 22 hours. lumia 520 here
  • What settings do you use? My Lumia 520 runs out of battery in just 7-8 hours.(even after the battery