Hi i force update to tango with mi rm-819 unlocked lumia 800 and now it have the 801 firmware which messed up my 850 3g band i was wondering if anyone manage to grab the OEm cab via wireshark or is there a stock rom that i could flash to revert to 819
jullian_d said:
Hi i force update to tango with mi rm-819 unlocked lumia 800 and now it have the 801 firmware which messed up my 850 3g band i was wondering if anyone manage to grab the OEm cab via wireshark or is there a stock rom that i could flash to revert to 819
Click to expand...
Click to collapse
Using RM-801 firmware on an 819 should have no effect on the performance. I used RM-801 firmware on my 819 for several weeks. The differences between the two are in the hardware, not software.
ibjaredu said:
Using RM-801 firmware on an 819 should have no effect on the performance. I used RM-801 firmware on my 819 for several weeks. The differences between the two are in the hardware, not software.[/QUO
ok glad to hear its just that my data service dont work since i flash the 801 firmware...gonna try a hard reset yikes
Click to expand...
Click to collapse
hard reset and everything is ok!!!
Hello, I have a Nokia Lumia 920 of AT&T and I wonder if I can install a firmware RM-821 europe.
thanks in advance
Why would you do that?
But it will probably not work since the LTE frequencies in the US are other than those in Europe: http://en.wikipedia.org/wiki/List_of_LTE_networks
then do not install any European firmware. Thank you very much friend
HacK-TroY said:
then do not install any European firmware. Thank you very much friend
Click to expand...
Click to collapse
Yes you can do it but not all of the RM-821 have the 4G enabled. You may have a look here at the new post created:
[FLASH] How to use NCS to change from RM-820 to RM-821 and vice versa
Hi,
I just bought a lumia 920 branded ATT from USA, i live in France so i try to put a different rom on it.
So i've tried to use NCS to replace the current rom RM-820 to a new one that i've downloaded : a french RM-821,
but that doesn't work and i don't know why : when i'm in ncs, it's show me the current version of the lumia, but in "new software version"
that tells me not available while i've put my rm-821 rom in a folder rm-820 in products folder.
Can someone help me ?
it is possible to do the switch between ATT rm-820 to RM-821 fr? if not, can i put an unbranded rm-820 rom at least?
Thanks a lot in advance (and sorry for my poor English)
can someone help me please ? :'(
debranded
It's ok, i did it, i debranded it!!!
Now i need to unlock it from at&t.
But i have another question, I have another lumia 920 at&t which is unlocked, if i debrand it too, will it still unlocked ?
Thanks in adavance
Killermix said:
It's ok, i did it, i debranded it!!!
Now i need to unlock it from at&t.
But i have another question, I have another lumia 920 at&t which is unlocked, if i debrand it too, will it still unlocked ?
Thanks in adavance
Click to expand...
Click to collapse
it'll be unlocked no matter what firmware you install. I had locked AT&T and after unlock I tried different roms, but be careful when updating from RM-820 to 821 if you update rogers pre-portico via OTA to portico you won't be able to return to RM-820 anymore see there are many threads here about the steps.
Thanks ok so i will flash it too,
But i don't understand why someone would return
from rm-821 to rm-820, there is any disavantage to have the rm-821?
Hi everyone, so im trying to flash a specific ROM to my Lumia 920. the problem is that its seems that navifirm is not working anymore, and as far as i know that is the only way to get the files for flashing.
any idea of whats going on?
I really need to flash this ROM to my phone
Thx.
PS: the product code is 059R984 RM-820 VAR AMERICA PE CLARO SL BLACK
Threx71 said:
Hi everyone, so im trying to flash a specific ROM to my Lumia 920. the problem is that its seems that navifirm is not working anymore, and as far as i know that is the only way to get the files for flashing.
any idea of whats going on?
I really need to flash this ROM to my phone
Thx.
PS: the product code is 059R984 RM-820 VAR AMERICA PE CLARO SL BLACK
Click to expand...
Click to collapse
Hi,
NaviFirm+ has some problems. You want flash 059R984?
Kaptaiin said:
Hi,
NaviFirm+ has some problems. You want flash 059R984?
Click to expand...
Click to collapse
Hi, yes I want to flash that ROM because I'm trying to enable AWS band on my 920 (RM-821). I've been reading a lot about this, and not many people have tried this process, but i read that flashing a specific rom that uses the 1700-2100 band (RM-820) you can then enable AWS on an RM-821. the problem most people had is that they dont know wich ROM have LTE AWS enabled. I found an article on a Perubian online newspaper where the goverment said that the lumia models being sell there were compatible with the AWS LTE band. So i want to try it.
thx for the answer, any idea of when will it work again?
Threx71 said:
Hi, yes I want to flash that ROM because I'm trying to enable AWS band on my 920 (RM-821). I've been reading a lot about this, and not many people have tried this process, but i read that flashing a specific rom that uses the 1700-2100 band (RM-820) you can then enable AWS on an RM-821. the problem most people had is that they dont know wich ROM have LTE AWS enabled. I found an article on a Perubian online newspaper where the goverment said that the lumia models being sell there were compatible with the AWS LTE band. So i want to try it.
thx for the answer, any idea of when will it work again?
Click to expand...
Click to collapse
You *may* get a FFU signature error, that prevent you to flash this RM-820 ROM on your RM-821 Lumia device. If you will not get a FFU signature error and that the flash of this RM-820 ROM on your RM-821 Lumia device works, it *may* that your RM-821 Lumia device loses some networks bands.
If you want to flash RM-820 ROM on your RM-821 Lumia device, with my tutorial, here is the FFU file of 059R984 in the currently the latest release: http://nds2.fds-fire.nokia.com/fds_..._RETAIL_lta_peru_299_04_383225_prd_signed.ffu
Sorry for my disturb. Will Navifirm Plus work again? I need to download a firmware for my Lumia 1020 RM-875 (059T9Z4 is the product code) but I can't do anything. Thank you for help. Also sorry for writing on lumia 920 Q&A, I saw the title "Navifirm not working..."
Kaptaiin said:
You *may* get a FFU signature error, that prevent you to flash this RM-820 ROM on your RM-821 Lumia device. If you will not get a FFU signature error and that the flash of this RM-820 ROM on your RM-821 Lumia device works, it *may* that your RM-821 Lumia device loses some networks bands.
If you want to flash RM-820 ROM on your RM-821 Lumia device, with my tutorial, here is the FFU file of 059R984 in the currently the latest release: http://nds2.fds-fire.nokia.com/fds_..._RETAIL_lta_peru_299_04_383225_prd_signed.ffu
Click to expand...
Click to collapse
m8, tnx A LOT for the help. i just flashed the rom and im testing it. can you send me the link for other 2 as well? i need to have the original one and another one to test :v Thanks again ^^
Product codes:
059R7X1 this is the original one
059R4H6 this one is another that works with the AWS band
Kaptaiin said:
You *may* get a FFU signature error, that prevent you to flash this RM-820 ROM on your RM-821 Lumia device. If you will not get a FFU signature error and that the flash of this RM-820 ROM on your RM-821 Lumia device works, it *may* that your RM-821 Lumia device loses some networks bands.
If you want to flash RM-820 ROM on your RM-821 Lumia device, with my tutorial, here is the FFU file of 059R984 in the currently the latest release: http://nds2.fds-fire.nokia.com/fds_..._RETAIL_lta_peru_299_04_383225_prd_signed.ffu
Click to expand...
Click to collapse
I just tested the ROM, with service menu i managed to see wich bands was accepting: 1,3,7,8,20 and the one i need is the band 4 -_-
im going to try by flashing the other rom I asked you for. but if navifirm+ doesnt work again, I'd like to ask you for other ROMs to follow this tutorial. if is too mucho work dont worry I can wait, the only one I really need to have is the original one (on the other quote).
Thanks again.
here is the tutorial with the ROMs
Originally Posted by dullerm
To follow up my previous post: after flashing some more, I managed to enable the AWS band on my AT&T Lumia 920. Unless T-Mobile lit up a 1900 tower just in the few minutes that the phone was rebooting after flashing GLOBAL BLACK SWAP, I am certain that I can now use 3G on AWS with it. For those who are interested, here is what I did to my AT&T Lumia 920:
start off with a Portico AT&T ROM (OTA-updated a few weeks ago on the still locked phone)
remove SIM unlock with AT&T provided unlock code
flash pre-Portico Rogers ROM
OTA-update to Portico Rogers ROM
flash Portico EURO1 DEV ROM (RM-821!)
flash Portico Rogers ROM
flash Portico LTA1 MX ROM
flash Portico GLOBAL BLACK SWAP ROM (RM-821!) ---> saw H, H+ indicator after this!!!
flash Portico Rogers ROM ---> 4G indicator
While flashing the LTA1 MX ROM (the Latin America ROMs are nicely debranded RM-820 ROMs but don't support LTE, at least in their cellular settings for highest connection speed), I decided for whatever reason to just give another RM-821 ROM a try and went for the GLOBAL BLACK SWAP. Maybe flashing EURO1 DEV again would have also done the trick as well and just flashing back and forth somehow enabled AWS. I don't know exactly what caused it but I am happy AWS works on the AT&T Lumia 920. This phone now certainly is the Überphone
and here the one with the product codes
Flash to Pre-Portico Rogers ROM: RM820_059Q6W4_1232.2109.1242.1002_039
OTA Update to Rogers ROM (1308)
Flash to European Developer ROM: RM821_059R4H6_1232.5957.1308.0002_027
Flash to Rogers ROM: RM820_059Q6W4_1232.5962.1314.0000_156
Flash to Global Black Swap ROM: RM821_059Q5C6_1232.5951.1249.1004_044 (No H/H+ as claimed by others, LTE disappeared from network options)
Flash to Rogers ROM: RM820_059Q6W4_1232.5962.1314.0000_156
Cristiano90 said:
Sorry for my disturb. Will Navifirm Plus work again? I need to download a firmware for my Lumia 1020 RM-875 (059T9Z4 is the product code) but I can't do anything. Thank you for help. Also sorry for writing on lumia 920 Q&A, I saw the title "Navifirm not working..."
Click to expand...
Click to collapse
Hi,
059T9Z4
- - - - - - -
Threx71 said:
m8, tnx A LOT for the help. i just flashed the rom and im testing it. can you send me the link for other 2 as well? i need to have the original one and another one to test :v Thanks again ^^
Product codes:
059R7X1 this is the original one
059R4H6 this one is another that works with the AWS band
Click to expand...
Click to collapse
- 059R7X1
- 059R4H6
Same problem
I've tried using Navifirm but it's not working.
Hi guys,
Could post link for my 059N5T3 please?
sukinsyn said:
Hi guys,
Could post link for my 059N5T3 please?
Click to expand...
Click to collapse
Hi,
059N5T3
Kaptaiin said:
Hi,
Click to expand...
Click to collapse
Thanks!
Just I have same - updated yesterday.
Don't like new Windows 10 on my Lumia 920.
Now trying already half of the day to downgrade to Windows 8/8.1
Have experience with Android - it was easy.
With my AT&T Lumia 920 it's a pain in the neck.
Hello,
I am new on the site and thank you in advance for all your help. My problem is this:
I bought Lumia 920 in USA in AT&T. It was unlocked phone to work with any SIM card. I have noticed that I do not have 4g speed on my phone and I do have carrier which supports 4g. Now I see in other topics that I have wrong rom. It is for USA. My current Rom is rm-820 and I see that I need rm-821. Ok, thats fine I can flash my phone and it should work. But, every topic, every page that I found on Google doesn't work. To be more precise topics do work but I can't get rm-821 :-/ I saw that Nokia blocked those servers something like that. Can someone give a me a way to put rom but technique that works ? I am from Croatia if this matters for rom.
Thank you very much guys !
you could try this:
https://stebet.net/how-to-install-a-country-variant-firmware-with-the-windows-phone-recovery-tools/
or this:
http://forum.xda-developers.com/showthread.php?t=2515453
ATT Lumia 920 Firmware Flash
Hi,
I might have missed some methods to do this task but in trying to debrand an ATT lumia 920 (RM-820) that's fully updated to WP 8.1, I can't seem to find a successful way to do it. I've done this procedure in the past successfully by flashing the specified Rogers firmware to the phone with Nokia Care Suite then on to an RM-821 firmware but what worked in the past no longer works. Nokia Care Suite now gives me an error message that the FFU file from my flash file and the FFU file on the phone don't match and the flash procedure halts. I've tried several different Rogers firmware files and no luck with any of them. Any ideas how I can accomplish this task?