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  1. venu238's Avatar
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       #1  
    Check this out! xda recognized developer "Snickler" found a way to update AT&T Lumia 920..
    Below is the tutorial and for help visit his thread here(xda)
    Quote Originally Posted by snickler
    EDIT:

    I've found a way to get Internet Sharing working for AT&T Customers.

    * Install the Spanish keyboard via Settings -> Keyboard -> add keyboards-> Spanish (Spain). It should be showing a Preparing Download status.
    * A menu should a pear that says that the update is ready to be installed. At this point, postpone it.
    * You should see internet sharing underneath Settings. Click on it and attempt to turn it on. You should see the error to call 611.
    * Go back to Settings -> language+region and set the Country/Region to United States. Let it reboot.
    * After reboot, Go into Settings -> phone update and install the update and let it reboot.
    * After this reboot, play around with the phone for 5 or 10 minutes. Let it get used to the change in region then go to Settings -> internet sharing and attempt to turn it on.
    * At this point, you shouldn't see any errors and you should be able to share your connection.

    Try this out and see if it works.


    Hi All,

    I've spent the past 4 days looking for a solution to get the Amber Update on my AT&T Branded Lumia 920 without installing a European ROM and changing to RM-821. After searching endlessly, I've found my solution that works!

    Prerequisites

    * Nokia Care Suite 2013.13.4.4
    * WperHelper v1.2 Note: This is in Chinese. I don't know Chinese AT ALL, but I've been able to figure my way around the app
    * Rogers Pre-Poritco ROM. Download the last group of files for Roger, not the AT&T ones.

    Steps:
    * DONT PLUG IN YOUR PHONE YET TO THE COMPUTER.
    * Extract/Install Nokia Care Suite. Open Care Suite when it's done installing and just put it to the side
    * Install WperHelper. It's all in chinese, but the buttons should be easy to navigate through
    * Download the last group of files for the pre-portico ROM if you haven't done so already.
    * Go to the Run menu on your system and go to "C:\programdata\nokia\Packages\Products". Create a new folder named "RM-820". If you already have files in here from a previous ROM installation, move them somewhere else. The group of files you downloaded for the Pre-Portico ROM will need to be moved inside of this folder.
    * Go back to NCS and double click on the Product Support Tool. If you don't see the little menu with the choices of apps to install, go to "C:\Program Files (x86)\Nokia\Nokia Care Suite\Product Support Tool For Store 5.0" and click on ProductSupportToolForStore.exe (Make sure the icon is an arrow. We don't need to open the .MANIFEST file).
    * When the Sign in popup comes on the screen. click Work offline.
    Click File -> Open Product and type in RM-820 in the filter then press Open
    * At the bottom left panel, click on Programming -> Recovery.
    * In the Properties listing, you should see 059R2L8 RM-820_Rogers_Canada_VAR240202_V2_Yellow 1232.2109.1242.1002
    * Click on that line that shows the data that I listed above then click the Start button.
    * Plug in your phone to the USB now, hold the Vol-Down + Power buttons until the phone restarts and you hear a vibration.
    * When you hear the vibration, press Retry.
    * You should see a little menu saying that the Product Code doesn't match, press Okay to continue.
    * Let it flash.
    * After the phone has flashed, set it up, but don't login to your Microsoft account yet (It's pointless at this point). Configure Wi-Fi though.
    * Go to Settings -> Phone update and check for updates. The first round of updates will put you on to Portico.
    * After these updates go through (It will take forever for it to finish Preparing to Install), you'll have to check for updates two more times in order to install Nokia Updates.
    * After these two extra updates, your phone will be up to date.
    * Now comes the fun part. Open up the WperHelper that you installed earlier.
    * On the Top group of text links(The bigger text), chose the second one from the left. It should bring up a screen with 4 drop downs.
    * From left to right, choose the following as values: Nokia, Lumia 920, RM-820, 3047.0000.1326.2001.
    * Click on the 059R2L5 button that is located under the first dropdown. At the bottom right part of the screen, you'll see a download icon (downward facing arrow with a line underneath of it). Click it.
    * This will start to download the ROM. When complete, Click on the Top group of text links, click on the third one then click on the second smaller text link underneath of it.
    * You should see bbs.wper.com_059R2L5.7z. Click on it then click the lightning bolt on the bottom left corner. This will extract the FFU package.
    * After it's complete, you'll see a new screen with a picture of a Windows phone and a bunch of Chinese text (I wish I had a translation). At this point you'll want to click the button that is listed directly under ( Step ).
    * This will automatically begin the ROM updating process. You'll be able to see a little log running at the bottom of the screen on whether the Flashing is working or not.
    * The place where the Windows Phone is showing will display the actual progress of flashing as it appears on your phone. You should be seeing the red screen with the progress bar on your windows phone by now. If this happens for you, then you're on your way to having the Amber Update.


    A few things to note

    After fully flashed, it'll bring you back to the typical phone set up screen. After you get to the main homescreen, wait a minute or so because it will require a reboot. After you bring the phone back up, go to Settings -> Access Point and choose AT&T - LTE 2 - Lumia. This will set up the MMS and Data settings correctly.

    Have fun!
    Last edited by venu238; 08-11-2013 at 10:29 AM.
  2. Maserati Storm's Avatar
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    #2  
    Seems legit, that was one of the factors that turned me away from the flashing
  3. DKDogz54's Avatar
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    #3  
    Quote Originally Posted by Maserati Storm View Post
    Seems legit, that was one of the factors that turned me away from the flashing
    What was wrong with the other method? Either way, it won't be an AT&T rom anymore
  4. venu238's Avatar
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       #4  
    Quote Originally Posted by DKDogz54 View Post
    What was wrong with the other method? Either way, it won't be an AT&T rom anymore
    It is without installing a European ROM and installs AT&T developer ROM. And you can get back to Stock ROM If you want 😊
    Last edited by venu238; 08-11-2013 at 01:07 PM.
  5. jojapath's Avatar
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    #5  
    Quote Originally Posted by DKDogz54 View Post
    What was wrong with the other method? Either way, it won't be an AT&T rom anymore
    Actually, it is a AT&T ROM.It's this one:

    059R2L5 RM-820 AT&T DEVELOPER DEVICE BLK


    Source: All Nokia Product Codes
  6. jojapath's Avatar
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    #6  
    And, instead of going through all this chinese software, you could also just download the ROM from here and install it with NCS.

    ROM 059R2L5
  7. Moiz Mian's Avatar
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    #7  
    Ok, wait wait, I'm interested in this. Is that ATT dev rom an amber rom and do you have to flash Rogers beforehand?
  8. FearL0rd's Avatar
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    #8  
    I used this tutorial in my Rogers
    everything is working well in TMOBILE including LTE


    This tutorial

    http://forums.windowscentral.com/nok...r-t-today.html
  9. #9  
    Quote Originally Posted by venu238 View Post
    It is without installing a European ROM and installs AT&T developer ROM. And you can get back to Stock ROM If you want 
    Once you go and flash other ROM that is not an AT&T ROM in to your AT&T Lumia there is no way of going back to an AT&T Rom in your phone. This means that if you install a Rogers ROM in to your AT&T Lumia no matter if the Rogers ROM is rm-820 like your AT&T original ROM you can't go back to AT&T ROM There is a thread about this on XDA. You can go Rogers to rm-821 and viceversa. But not Rogers to AT&T or RM-821 to AT&T. Once you go away of your AT&T ROM there is no way back.

    [FLASH] How to use NCS to change from RM-820 to RM-821 and vice versa - xda-developers



    If you know how to go back either from Rogers ROM or from any rm-821 back to AT&T post a link where you get it from cause me and i'm sure others want to know just in case is needed in the future.
    Thanked by:
    TechAbstract likes this.
  10. MyThIc3LiTe's Avatar
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    #10  
    Quote Originally Posted by Alex Rodriguez View Post
    Once you go and flash other ROM that is not an AT&T ROM in to your AT&T Lumia there is no way of going back to an AT&T Rom in your phone. This means that if you install a Rogers ROM in to your AT&T Lumia no matter if the Rogers ROM is rm-820 like your AT&T original ROM you can't go back to AT&T ROM There is a thread about this on XDA. You can go Rogers to rm-821 and viceversa. But not Rogers to AT&T or RM-821 to AT&T. Once you go away of your AT&T ROM there is no way back.

    [FLASH] How to use NCS to change from RM-820 to RM-821 and vice versa - xda-developers



    If you know how to go back either from Rogers ROM or from any rm-821 back to AT&T post a link where you get it from cause me and i'm sure others want to know just in case is needed in the future.
    This is so correct.

    The Rogers 920 is for all intents and purposes the pentaband, truly global 920. It can accept Euro Dev roms because those keep all LTE and 3G bands for global use and it can pretty much go back and forth to whatever firmware you damn well please.

    ATT, as always, did something even worse.
  11. #11  
    Quote Originally Posted by venu238 View Post
    It is without installing a European ROM and installs AT&T developer ROM. And you can get back to Stock ROM If you want 
    I read the original tutorial on XDA and no one on that thread have said that once flashed can go back to their original ROM, even if you are using the AT&T Dev Rom no one have said that was able to return the phone to original AT&T Rom. Update your original post until someone does it. The XDA guy snickler that wrote the tutorial was speculating because the ROM still an AT&T Rom.

    Someone ask him and he said this:

    Quote:
    Originally Posted by captblaze
    is this unbranded after final install and can it be rolled back to an ATT branded rom successfully?

    snickler
    "its actually using an AT&T developer ROM. You should be able to go back to a stock AT&T ROM"


    He never said it is possible.
    Thanked by:
  12. venu238's Avatar
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       #12  
    Quote Originally Posted by Alex Rodriguez View Post
    I read the original tutorial on XDA and no one on that thread have said that once flashed can go back to their original ROM, even if you are using the AT&T Dev Rom no one have said that was able to return the phone to original AT&T Rom. Update your original post until someone does it. The XDA guy snickler that wrote the tutorial was speculating because the ROM still an AT&T Rom.

    Someone ask him and he said this:

    Quote:
    Originally Posted by captblaze http://buttons.media.xda-developers....s/viewpost.png
    is this unbranded after final install and can it be rolled back to an ATT branded rom successfully?

    snickler
    "its actually using an AT&T developer ROM. You should be able to go back to a stock AT&T ROM"


    He never said it is possible.
    Thanks for spotting my mistake, sorry!
    Alex Rodriguez likes this.
  13. TechAbstract's Avatar
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    #13  
    Quote Originally Posted by jojapath View Post
    Actually, it is a AT&T ROM.It's this one:

    059R2L5 RM-820 AT&T DEVELOPER DEVICE BLK


    Source: All Nokia Product Codes
    I can verify this ROM gives you tethering after adding Spain - Spanish keyboard in Settings. But it won't get you back to AT&T stock RM-820 ROM.
    Favorite Apps: Windows Phone News, WPCentral, TV Series, Flash Sports, myTube, Metrotube, wpTorrent, Yxplayer WP8, Moliplayer Pro, Package Tracker, NZBConnect, Media Browser, Audiotica 4, MP3 finder, User Agent Switcher, UC Browser, GetThemAll, Amazing Music, Music+, MetroRadio, FlashVideo, Navigon, WebApps, Note It
  14. #14  
    Flashing to this rom would cause your RM-820 to be permanently changed to RM-821, from what I've read there is no reverting. What does this mean as a Rogers customer? Will I still be receiving the roger's firmware after it is released? Pro and cons?
  15. temna's Avatar
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    #15  
    Just curious what the advantage of the RM-820 over the RM-821...
  16. jojapath's Avatar
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    #16  
    Guys! It is a RM-820 ROM !!! It's the AT&T DEV ROM !!!!

    Read post #5 or just do your own research....
  17. twodice1's Avatar
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    #17  
    You have instructions to flash with AT&T dev rom?

    I keep getting this error with the ATT dev rom when trying to flash:
    0xFA001304: Platform ID check fails. Reason(s): The FFU file is not meant for this product. The platform ID of image does not match with platform ID of the device.

    Quote Originally Posted by jojapath View Post
    Guys! It is a RM-820 ROM !!! It's the AT&T DEV ROM !!!!

    Read post #5 or just do your own research....
    Last edited by twodice1; 08-13-2013 at 10:12 PM.
  18. jojapath's Avatar
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    #18  
    Quote Originally Posted by twodice1 View Post
    You have instructions to flash with AT&T dev rom?
    Instructions are in the first post.
  19. inteller's Avatar
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    #19  
    his instructions for getting free tethering aren't even correct, don't trust anything that fool says.
  20. #20  
    If I flash this rom on my Rogers 920, I shouldn't have to do the first steps, just download, and flash, correct? However what would be the disadvantage of flashing for a Rogers customer?
  21. hfcas's Avatar
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    #21  
    059R2L5 RM-820 AT&T DEVELOPER DEVICE BLK

    The code actually is for Build 920. Since I have one, I can confirm that. I have no idea if it has anything to do with AT&T. And just flashed it and it worked fine.
  22. TechAbstract's Avatar
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    #22  
    Quote Originally Posted by hfcas View Post
    059R2L5 RM-820 AT&T DEVELOPER DEVICE BLK

    The code actually is for Build 920. Since I have one, I can confirm that. I have no idea if it has anything to do with AT&T. And just flashed it and it worked fine.
    059R2L5 RM-820 AT&T DEVELOPER DEVICE BLK has a "RM820_1232.5957.1308.0001_RETAIL_nam_canada_246_01_154187_prd_signed.ffu" file. To me it has more common with RM-820 Roger version than with AT&T
    Favorite Apps: Windows Phone News, WPCentral, TV Series, Flash Sports, myTube, Metrotube, wpTorrent, Yxplayer WP8, Moliplayer Pro, Package Tracker, NZBConnect, Media Browser, Audiotica 4, MP3 finder, User Agent Switcher, UC Browser, GetThemAll, Amazing Music, Music+, MetroRadio, FlashVideo, Navigon, WebApps, Note It
  23. #23  
    Sounds very promising. I have the files downloaded and ready to go, frankly if I don't miss out on any firmware updates I think I'll be okay in the future
  24. shindou26's Avatar
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    #24  
    I was able to flash to the AT&T dev rom. I had to flash to Rogers Pre-Portico first and then update it. After that I was able to simply flash the AT&T dev rom. I tried flashing it when the phone was on Pre-Portico, but it didn't work and I got the "FFU file is not meant for this product" error.

    Quote Originally Posted by twodice1 View Post
    You have instructions to flash with AT&T dev rom?

    I keep getting this error with the ATT dev rom when trying to flash:
    0xFA001304: Platform ID check fails. Reason(s): The FFU file is not meant for this product. The platform ID of image does not match with platform ID of the device.
    His instructions weren't for free tethering, but how to get Internet Sharing to work.

    Quote Originally Posted by inteller View Post
    his instructions for getting free tethering aren't even correct, don't trust anything that fool says.
  25. da1stprince's Avatar
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    #25  
    I just successfully flashed a rogers pre portico rom onto my att L920 and flashed back to my original stock rom because for some reason I couldn't flash the att amber dev rom (kept getting ID invalid errors) and because I tried to do this so early in the morning and have to go to work in a few hours I needed my phone working so, I went back to stock att rom and successfully restored everything pre flash status... it looks like the key to successfully flashing back to stock is not to do any o.t.a. updates in the Rogers rom!!,hope this helps anyone interested.
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