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  1. crav4speed's Avatar
    That's because LTE IS 4G. LTE is a 4G technology...in the same way that UMTS and HSPA are 3G technologies...
    Well, if you want to get technical, LTE isn't truly 4G. The only true 4G standard is LTE-Advanced.

    On a side not, I installed the AT&T Dev rom last night since a couple of people seem to have had success with it on AT&T devices. So far everything is just as smooth as the Euro Dev rom and I have my tethering back!!! YAY!!
    08-27-2013 10:46 AM
  2. Akash Shah2's Avatar
    How do you flash the at&t dev rom? the same way as mentioned on the first page of the thread? or is there something different we have to do?
    digitalicecream likes this.
    08-27-2013 11:10 AM
  3. digitalicecream's Avatar
    Well, if you want to get technical, LTE isn't truly 4G. The only true 4G standard is LTE-Advanced.

    On a side not, I installed the AT&T Dev rom last night since a couple of people seem to have had success with it on AT&T devices. So far everything is just as smooth as the Euro Dev rom and I have my tethering back!!! YAY!!
    Do we just flash this over the 821 French ROM? do you get tap to wake/ flip for silence/ glance?
    Last edited by digitalicecream; 08-27-2013 at 06:07 PM.
    08-27-2013 05:08 PM
  4. Ed Boland's Avatar
    How do you flash the at&t dev rom? the same way as mentioned on the first page of the thread? or is there something different we have to do?
    I'm thinking about flashing this rom as well and was wondering the same thing. Do we put it in the rm-821 folder (that we created for the French amber rom)??? Or what??

    Need updated instructions for the new roms please!
    08-27-2013 05:17 PM
  5. captblaze's Avatar
    I'm thinking about flashing this rom as well and was wondering the same thing. Do we put it in the rm-821 folder (that we created for the French amber rom)??? Or what??

    Need updated instructions for the new roms please!

    1. flash rogers pre portico
    2. enable wifi and connect to a wifi network
    3. wait for rogers ota update
    4. accept and install ota update (you can now never go back to stock att usa)
    5. update device from settings at least twice more
    6. once you cant ota update anymore flash att dev rom
    7. after flash during setup choose lte2 when setting access point
    8. remember you now no longer have a device att usa supports
    08-27-2013 06:37 PM
  6. TechAbstract's Avatar
    1. flash rogers pre portico
    2. enable wifi and connect to a wifi network
    3. wait for rogers ota update
    4. accept and install ota update (you can now never go back to stock att usa)
    5. update device from settings at least twice more
    6. once you cant ota update anymore flash att dev rom
    7. after flash during setup choose lte2 when setting access point
    8. remember you now no longer have a device att usa supports
    LTE1 is working fine for me too on ATT Dev ROM. Was on phone for 2 hrs and another time for 30 mins with no dropped call. Very reliable just like stock ATT ROM. I used the Lumia 920 to tether to a PC and uploaded this AT&T Dev ROM
    https://app.box.com/s/ltm0e44h1sobwstimydv
    Last edited by TechAbstract; 08-27-2013 at 07:38 PM.
    juan6996 likes this.
    08-27-2013 07:19 PM
  7. crav4speed's Avatar
    Do we just flash this over the 821 French ROM? do you get tap to wake/ flip for silence/ glance?
    Well, I was on the Euro Dev rom which is also RM-821 but I was able to flash right over it. Also, since the AT&T Dev rom is RM-820, make sure you open product for RM-820.

    All the Amber features are there so no worries about that. Also, even though this is the AT&T Dev rom, it's actually a Canadian rom so there are settings like speech and regional format that you will have to change. Another downside is you won't be able to restore from a backup. I also went with the LTE 2 apn as opposed to LTE 1.
    08-27-2013 07:28 PM
  8. digitalicecream's Avatar
    I'm on T-Mobile, the LTE settings were plugged in automagically on the French ROM. I don't have flip/tap/glance. am I missing something? do I need to do something to activate that?
    08-27-2013 08:14 PM
  9. German Araujo's Avatar
    free tethering with the new romm in Uruguay (antel) . Thanks!!!
    08-27-2013 08:25 PM
  10. pankaj981's Avatar
    I'm on T-Mobile, the LTE settings were plugged in automagically on the French ROM. I don't have flip/tap/glance. am I missing something? do I need to do something to activate that?
    Download this app, and update all Nokia system apps.

    http://www.windowsphone.com/en-us/st...e-36335242ed2e
    Games Goblin likes this.
    08-27-2013 09:07 PM
  11. Ed Boland's Avatar
    So, about the "can't restore from backup" after flashing the Canadian dev rom, wouldn't it sync all my contacts and such after I add my Microsoft account later?
    What would I be losing by not being able to restore my backup? I mean, I know all my app purchases will still be tied to my ms account right?
    08-28-2013 07:54 AM
  12. juan6996's Avatar
    To people that use the At&t Dev GDR2 ROM:
    -Is network connectivity better?
    -Does tethering work, even without a tethering plan?
    -Does it have at&t branding?
    -Overall, do you prefer it to the French rom on the OP?
    -where can I download it?
    08-28-2013 08:42 AM
  13. juan6996's Avatar
    So, about the "can't restore from backup" after flashing the Canadian dev rom, wouldn't it sync all my contacts and such after I add my Microsoft account later?
    What would I be losing by not being able to restore my backup? I mean, I know all my app purchases will still be tied to my ms account right?
    Basically, you would loose your app list + data, call history, and any photos/videos/music that aren't backed up elsewhere. After you sign in, you will restore text messages, contacts, email, calendar, and you can redownload any paid apps that you already bought, for free.
    08-28-2013 08:51 AM
  14. juan6996's Avatar
    LTE1 is working fine for me too on ATT Dev ROM. Was on phone for 2 hrs and another time for 30 mins with no dropped call. Very reliable just like stock ATT ROM. I used the Lumia 920 to tether to a PC and uploaded this AT&T Dev ROM
    https://app.box.com/s/ltm0e44h1sobwstimydv
    Thanks, but it says that your Box is out of bandwidth. I typed in 059R2L5 into the Support Tool firmware downloader, and I'm downloading it now. I will test it, and if it works better than the French ROM, I'll replace the French ROM with the ATT Dev ROM on the Skydrive folder.
    mamoranto likes this.
    08-28-2013 08:57 AM
  15. masaga91's Avatar
    For those on T-mobile. I have followed these instructions and I'm seeing connectivity I did not see before. H, H+, G and 4G, as well as the infamous E. I'm hoping this ROM has awakened the fabled frequencies. My city does not have all of the towers updated to new LTE bands and as such I have a ton of dead spots. I'm going to go and test this around the city and will post an update to what I find.

    Found:

    E = 2G Edge
    G = 3G?
    4G= WTF?
    H= 3.5G
    H+ = 4G/HSPA+

    In addition to the new bands, it looks like I have fast wireless charging. I also expect a faster battery drain with the added bands turned on and looking for signal. Excellent tradeoff.
    Actually

    G = GPRS (2.5G)
    E = Edge (2.75G)
    H = HSPA (3.5G)
    H+ = HSPA+ (3.5G)
    4G = 3.9G
    LTE = LTE
    08-28-2013 09:31 AM
  16. mamoranto's Avatar
    Thanks, but it says that your Box is out of bandwidth. I typed in 059R2L5 into the Support Tool firmware downloader, and I'm downloading it now. I will test it, and if it works better than the French ROM, I'll replace the French ROM with the ATT Dev ROM on the Skydrive folder.
    I would like to know if your still have Data sense and Free tether. I have Euro Dev and have no issues except for the Kid's Corner max volume of 13.
    08-28-2013 11:45 AM
  17. christopherbarran's Avatar
    I flashed to the French ROM following the instructions here and I've had no problems. Internet sharing, data sense, everything just works. I did have the speech issue, but all I had to do was download the correct language and that was sorted out.
    juan6996 likes this.
    08-28-2013 12:40 PM
  18. juan6996's Avatar
    August 28th update: Added fix for "no speech features". Also, looking into the att dev ROM as an alternative.
    08-28-2013 12:55 PM
  19. somubtech's Avatar
    Juan, awesome job.
    I thought about flashing and then backed off may be 10 times now.
    I am getting impatient with AT&T, decided to flash my device. Since my other storage is also filled up, I think its a win-win to flash my phone now.

    Does anyone has links to download AT&T dev ROM? Please pass it along. Thanks.
    08-28-2013 05:44 PM
  20. buddha747's Avatar
    I have been downloading as many ROMs from Nokia Care Suite as possible as i assume they will patch NCS to block us.

    I uploaded my copies of the pre-portico Rogers ROM here:
    Rogers - RM-820 - Pre-Portico - Yellow.zip (645.9 MB)


    And the ATT Dev ROM is here:
    059R2L5 - RM-820 - ATT DEV Black.zip (659.1 MB)

    Standard disclaimer, whatever, not my fault if you mess your phone up, but it should work just fine

    Anybody who has used the ATT Dev ROM I would love to hear how it is. I am an ATT user and am on the fence, mostly worried about connection/LTE bands, and if i could get updates in the future.

    If anybody wants another ROM just comment and i'll upload it for you.

    :)
    Derausgewanderte likes this.
    08-28-2013 06:24 PM
  21. TechAbstract's Avatar
    Here is another link to ATT Developer ROM RM-820. It's working flawlessly for me so far. You will get future updates but will probably need to wipe your device like currently.

    https://skydrive.live.com/pagenotfounderror (545MB in 3 parts)
    Last edited by TechAbstract; 08-28-2013 at 10:19 PM.
    08-28-2013 09:29 PM
  22. revfast's Avatar
    Ill be nice to see what this att dev rom brings to the plate, how about the 1330 rom ?? Any body have any info on it ??
    08-28-2013 09:38 PM
  23. ziggygod's Avatar
    I want to flash my phone but are there any apps out there that saves what apps you downloaded, the settings, and the tile placements? I could take a screenshot of it all but that would be so tedious. -_- lol
    08-28-2013 09:40 PM
  24. TechAbstract's Avatar
    I want to flash my phone but are there any apps out there that saves what apps you downloaded, the settings, and the tile placements? I could take a screenshot of it all but that would be so tedious. -_- lol
    Go to Windowsphone.com and log in, then check your App history
    08-28-2013 09:42 PM
  25. Erik Zellinger's Avatar
    I have been following this thread and decided to flash to the At&t Dev ROM yesterday. I have had a few issues with this rom. I have a tethering plan so when I first flashed it I went into settings to see if it would work. I got the msg to call At&t, so I did the keyboard trick and it worked. I noticed the WiFi connection would be on but it would use cellular data sometimes. I will keep an eye on that and report back to you. And the only other thing as of right now is the cellular connection. Sometimes I will have full bars and then there will be no bars. Once that happens it seems to jump back to close to full bars again. Call quality hasn't been a issue but its just what I noticed. Also it used to say LTE next to the reception on the original stock rom and now it only has a L next to the reception. I have noticed an H also next to the bars of reception. Like I said it hasn't been a problem yet because I haven't been on the phone when reception goes to nothing. If there is anything else I can think of I will add it later. Thanks
    08-28-2013 11:00 PM
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