Windows Phone 7.8 update for Lumia 900 ready on Nokia’s servers

Just yesterday it was discovered that Nokia had been seeding some OS updates for the Lumia 800 and 510 devices on their servers, specifically WIndows Phone 7.8. The evidence came via the third-party software Navifirm, which shows the updates waiting for distribution.

Now, one of our eagle-eyed readers caught the Lumia 900 getting in on the action. The OS update is for RM-823, which is the international, non-AT&T version and has an OS version number of 8858 with the 12480 firmware. Windows Phone 7.8 is finalized at 8858 making this a bonafide official update.

Windows Phone 7.8 is poised for release on the Lumia 900

While we didn’t count the number of carrier or regional updates, there are plenty including Baltics, Austria, Belgium, Denmark, Finland, India, Portugal, Spain, Switzerland, European unlocked, Sweden and more. It looks like an army on the hills getting ready to attack, as Nokia is evidently going to roll out 7.8 en masse within the next few weeks.

The AT&T version, RM-808, unfortunately did not have an 8858 update sitting on the servers. That doesn’t necessarily mean anything bad as that situation can change at any moment now.

Our reader, Jens_V, managed to also download and flash their Lumia 900 with the updated OS and noted “No Nokia features, just live tiles, Bing wallpaper, new colors, new boot screen, new wallpapers”, which are things we expected. Nokia is likely to add new camera apps via the Nokia Collection soon after the update goes live to users.

For those curious if you can flash your AT&T phone with one of these combo OS/firmware packages, yes you technically can but we do not know the ramifications including whether or not you’ll hose LTE, let alone of the rest of the radio via this update. Best to sit back and just wait a little while longer.

Thanks, Jens_V, for the tip and photo!

Daniel Rubino

Daniel Rubino is the Editor-in-chief of Windows Central, head reviewer, podcast co-host, and analyst. He has been covering Microsoft since 2007 when this site was called WMExperts (and later Windows Phone Central). His interests include Windows, laptops, next-gen computing, and for some reason, watches. Before all this tech stuff, he worked on a Ph.D. in linguistics, watched people sleep (for medical purposes!), and ran the projectors at movie theaters because it was fun.

  • Tutorial on how to flash it!
  • I flash bricked 920 using only Nokia suite 5.0. The instructions using navifirm was somewhat confusing for me. Nokia suite searched the web for the rom in connection with the phone you chose and downloaded it.
  • I'll wait for the official roll out, thanks. Nice to know its imminent.
  • ROM for Lumia 710  (India, black color) has some Nokia goodies preinstalled like bluetooth sharing and ringtone maker. Bluetooth sharing app appears in a list when clicked on share button and works flawlessely. Tried with Xperia J (android).
    Ringtone makers let me select any song (DRM free) from phone and I can crop any 30 second part of it and set as ringtone from app itself. Again works flawlessely.
    However I couldn't find  cinemagraph and other new camera add on anywhere.
  • I'm at México so I installed the Country variant version from Argentina and I see the Bluetooth sharing but I can't find the cinegraph and ringtone maker
  • Hey, the Cinegraph is not and application itself... and you will find it in the camera settings as well as the smart shot function. But I cant find the ringtone maker eather. 
  • Cinegraph is not on the settings either xD
  • cinemagraph is an application you download. i have WP8
  • Nokia is doing everything while the other guys are doing nothing. My next phone will be Nokia and to get the one I really want, maybe it's time to look for a new carrier as well. T-Mobile, its been a good run.
  • +1. I will wait to get the 7.8 on my Focus S, but I am tired of making excuses for Samsung. They have supported their Focus line a little, but Nokia is all in and is proving it. Now, HTC hasn't supported either the Titan or T2 at all, so I have good money that says I will see the 7.8 before My Wife who is going to have to wait on HTC. But Nokia will be an easy choice for me when I move to WP 8.
  • Yes, exactly. Clearly Nokia has separated itself from every other OEM with their exclusives and added value for customers. They really work for your business. This is how we should be treated.
  • Lumia 710 RM-809 is also available for wp7.8 update.
    Short Tutorial,
    Required software:
    Nokia Care Suite 5.0
    Nokia Data package manager or Navifirm v1.7
    1. Download firmware package for your phone via Navifirm/Data package manager
    2. Install Nokia USB driver (included in Caresuite folder after installation)
    3. Launch Product support tool and -> open product -> programming-recovery and choose the firmware you downloaded -> hit start and wait until you get a popup telling you what to do with your phone in order to start the process
  • Is it available in India for 710?
  • I believe this wipes all user data. Can anyone confirm. Ty
  • What about an update for Lumia 920 with the always on wifi feature? Htc 8x already has it!  :-(((
  • Dude, chill out. You have a great phone. Relax.
  • I bet it's all included in the 7.8 update
  • The 920 doesn't get 7.8 :P
  • next phone is definitely a nokia
  • Typo Dan: "we do not know the ramifications including whether or not you’ll hose LTE" :)
  • Actually not a typo, I mean 'hose' as in "yeah, my new computer got hosed by the upgrade". But I can see how you would think it should be 'lose' as that works too.
  • Thanks for teaching me something new! ^^ English isn't my native language...
  • Yeeeeeeeeeeeeeees!! my cyan Nokia Lumia 900 is going to get a new paint job!
  • have you done it yet? any problems? I'm scared to do it, afraid I might brick my phone!
  • I can notice that 7.8 update for Lumia 510 is pulled off from servers, atleast Navifirm isn't showing it. Yesterday, it was there.
  • Rad.  Let it roll.
  • Just one of the many reasons to buy only Nokia phones they are the best
  • Indeed!
  • I'm hoping someone will provide a way of getting this on the Samsung Focus :P
  • I've been using it for a couple of weeks and its very stable and smooth. Enjoy
  • Awesome! Can't wait!
  • Don't want to flash!  Just want to update!!!  Someone please push the "RELEASE U.S. UPDATE"  button already!!!  Or tell me where the button is and I'll press it myself!  
  • Why Zune logo
  • 7.8 still uses Zune for music and media syncing so I'm guessing that's why they didn't switch it
  • Yeah it still uses zune. But the live tile is now more active. It shows the picture of the artist, the name of the artist flyes thru the live tile and you have now all three sizes of the music+video (zune) app.
  • So what about America?
  • America usually refers to either:
    ■The Americas, a landmass comprising North and South America
    ■The United States of America, a country in North America
    For more info, go to Wikipedia :P :P
  • Ha, +1
  • I wish they would just add camera lenses..
  • Nokia is getting back on track!! Waiting for my contract to end in January, so I can switch to a Lumia 920. The yellow one:)!
  • bough the yellow one for the wife. its pretty sweet.
  • Inching closer...
  • What about first gen devices like my HTC HD7? Nokia sure does the job right but I'd like to see some HTC love too!
  • + 1000. Its a solid device. Waiting for the same here.
  • We'll definitely get it for that!
  • "For those curious if you can flash your AT&T phone with one of these combo OS/firmware packages, yes you technically can"
    No, you technically can't. The signatures and product codes are different, trying to flash an RM-823 rom to an RM-808 will just result in care suite saying it can't. Once the RM-808 package is out, it'll flash w/ care suite.
  • Thanks for clarifying if RM-823 will work on an RM-808..... Good to know!
  • CANT WAIT TIL ITS OUT. The home screen without the wasted space on the right and way more shortcuts. Sweet.
  • Hurry
  • Yawnnnnnnn...
  • Its not much of an update really. Its a real shame MS didnt add a little bit more, screenshot, font size, basic photos edit options.
    My they be cutting out anyone over 40 with out a font size option. You cant even pass your old phone off to your parents. 
  • When I flashed my 800 i didnt need to use the NaviFirm firmware, I downloaded it through NSS and it flashed it easy as pie, pretty straight forward process.
  • Any idea when 7.8 will be out officially for my lumia 710?
  • When my HTC Titan II is getting it??? I am eagerly waiting
  • Samsung do something, I am having Omnia w in India, waiting for windows 7.8 update
  • Wow it's coming pretty soon then im dying for that new start screen ...anyone know if you can pin photos in 7.8 ?
  • Yes it can pin photos. My lumia 920 can
  • No it can't. Just tested it :) Lumia 900 7.8 cannot, WindowsPhone8 apparently does..
  • Wonder if my friend htc arrive will get an update to 7.8 since it gotten awesome reviews from sprint customers
  • I just updated my Lumia 900 With the RM-823 VAR EU NO CV BLACK ROM and it worked perfectly.  Loving the new home screen, spent ages playing about until I got something I liked.
    Anyone know if there is a screenshot function built in yet?
    Anyway thanks for the tip!
  • What did you use to flash the rom?
  • Nope, no screenshot ability .. :(
  • Basically 7.8 is cosmetic only then. We can hope that Nokia etc add functions to their Firmware :)
  • Anyone installed 7.8 yet , know if we can now backup SMS messages, and use always on WiFi. Thanks :)
  • Neiter of those are possible.. No sms back up, (no sms draft) , no wifi keep alive
  • Oh well wishful thinking. Thanks anyway
  • And I was wondering if 7.8 supports new languages
  • Can anyone please tel me how to get 7.8 for my 900??
  • it works for my lumia 900 :) thank you!
  • Anyone know if flashing deletes user data. If so can I restore from back. Thanks