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Hi all,
a Developer rom is available in navifirm right now
Release:1232.2110.1244.3002
Product Code: RM-821_ROW_DeveloperDevice_VAR251040_Black_v2_Black
ellokomen said:
Hi all,
a Developer rom is available in navifirm right now
Release:1232.2110.1244.3002
Product Code: RM-821_ROW_DeveloperDevice_VAR251040_Black_v2_Black
Click to expand...
Click to collapse
Hi Ellokomen.
Probably a stupid question, but what are the advantages of a developer ROM?
The Developer ROM has been there since at least November (as that's when I downloaded it)...
I don't know how significant it is, but there was never a Portico version of the Developer ROM before they were all pulled so it doesn't appear it's first on the list for updates if that is what you were thinking.
GrahamWager said:
The Developer ROM has been there since at least November (as that's when I downloaded it)...
I don't know how significant it is, but there was never a Portico version of the Developer ROM before they were all pulled so it doesn't appear it's first on the list for updates if that is what you were thinking.
Click to expand...
Click to collapse
The portico version of the developer ROM is now available (see 1232.5951.1249.1002 - RM-821 VAR EURO1 Developer Device).
But again: what would be the advantage of flashing that to my phone?!?
Can the Developer rom side load apps?
Manoli87 said:
Can the Developer rom side load apps?
Click to expand...
Click to collapse
+1 ... please explain can it? or can the dev rom atleast have access to root system of the phone?
Manoli87 said:
Can the Developer rom side load apps?
Click to expand...
Click to collapse
+1 me too...just downloading...is safe to flash this ROM?
I think it would help to remove the internet sharing block on AT&T and rogers phones.
Has anyone tried to flash this RM-821 ROM onto a RM-820 device? I know that technically they are different phones but you could flash the RM-819 (Lumia 800) onto a RM-801 without issue aside from perhaps a missing 3G band. But the 820/821 have exactly the same 3G bands just different LTE (which I don't care about) so it shouldn't be an issue right?
voluptuary said:
Has anyone tried to flash this RM-821 ROM onto a RM-820 device? I know that technically they are different phones but you could flash the RM-819 (Lumia 800) onto a RM-801 without issue aside from perhaps a missing 3G band. But the 820/821 have exactly the same 3G bands just different LTE (which I don't care about) so it shouldn't be an issue right?
Click to expand...
Click to collapse
I flashed this rom on my att lumia and everything seems to work fine. Only thing is I can't tell if my LTE isn't working tho b/c I don't live in an LTE market.
patrick92260 said:
I flashed this rom on my att lumia and everything seems to work fine. Only thing is I can't tell if my LTE isn't working tho b/c I don't live in an LTE market.
Click to expand...
Click to collapse
Perfect, thanks! I also don't live in an LTE market so I could give two sh!ts about the LTE working or not but removing all the att crap is a must for me.
patrick92260 said:
I flashed this rom on my att lumia and everything seems to work fine. Only thing is I can't tell if my LTE isn't working tho b/c I don't live in an LTE market.
Click to expand...
Click to collapse
That's odd because when I tried to flash the RM-820 ATT Firmware to my international RM-821 Lumia Nokia Care Suite said that it's for a different model (or sthg like that) and then aborted the flashing process. This left my phone "soft bricked" - meaning that I had to re-flash it with a RM-821 ROM to get it working again.
I wonder if this Dev ROM might actually be a RM-820 ROM that is only (by mistake) labeled as RM-821?????
Has anyone tried to flash it to a RM-821 international model yet? Because from what I know the only Dev phones were RM-820 models and that always left me wondering why there is a Dev ROM for RM-821 but non for RM-820 when on the other hand there are only RM-820 Dev phones but no RM-821 dev phones.
karlmueller said:
That's odd because when I tried to flash the RM-820 ATT Firmware to my international RM-821 Lumia Nokia Care Suite said that it's for a different model (or sthg like that) and then aborted the flashing process. This left my phone "soft bricked" - meaning that I had to re-flash it with a RM-821 ROM to get it working again.
I wonder if this Dev ROM might actually be a RM-820 ROM that is only (by mistake) labeled as RM-821?????
Has anyone tried to flash it to a RM-821 international model yet? Because from what I know the only Dev phones were RM-820 models and that always left me wondering why there is a Dev ROM for RM-821 but non for RM-820 when on the other hand there are only RM-820 Dev phones but no RM-821 dev phones.
Click to expand...
Click to collapse
It's not mistakenly mislabeled b/c nokia care suite now identifies my att lumia as a RM-821 (originally RM-820) and now in extras+info the manufacturer model name is RM-821_eu_euro1_425 so it's obviously designed as a european rom.
patrick92260 said:
It's not mistakenly mislabeled b/c nokia care suite now identifies my att lumia as a RM-821 (originally RM-820) and now in extras+info the manufacturer model name is RM-821_eu_euro1_425 so it's obviously designed as a european rom.
Click to expand...
Click to collapse
Well this makes me wonder whether RM-820 and RM-821 might actually be the exact same phone hardware wise with only some (artificial) lock preventing cross-flashing between those variants ...
Would be interesting whether you could flash other non-developer RM-821 ROMs to your RM-820 now and also if you could still flash it back to an RM-820 AT&T or Rogers ROM.
product id incorrect
patrick92260 said:
I flashed this rom on my att lumia and everything seems to work fine. Only thing is I can't tell if my LTE isn't working tho b/c I don't live in an LTE market.
Click to expand...
Click to collapse
i would like to know how to flash this room to my lumia cause every time i get the same wrong product id error message , can u tell us how u did it please , i live in california and i always get Lte
@alfaro58
Did you try it using the latest version of Nokia Care Suite?
@patrick92260
Which product code does Nokia Care Suite show for your phone now? The original AT&T one or the one for the RM-821 Developer ROM?
karlmueller said:
@alfaro58
Did you try it using the latest version of Nokia Care Suite?
@patrick92260
Which product code does Nokia Care Suite show for your phone now? The original AT&T one or the one for the RM-821 Developer ROM?
Click to expand...
Click to collapse
it show Rm-820 and the version of noki care suite that i have is 5.0.2012.45.4.5 , i dont know if this is the latest version , i was trying to see if there's a new updated but the check for new updated button in disable , any idea ?
karlmueller said:
@alfaro58
Did you try it using the latest version of Nokia Care Suite?
@patrick92260
Which product code does Nokia Care Suite show for your phone now? The original AT&T one or the one for the RM-821 Developer ROM?
Click to expand...
Click to collapse
It shows the product code for the RM-821 dev rom and identifies it as RM-821.
edit: looked at the wrong place for the product code. It still has the original ATT product code but NCS still identifies it as an rm-821
I just tried to flash my att Lumia several times but just get the phone bricked and flashed back to att rom
Sent from my RM-820_nam_att_100 using Board Express
Oddly the update menu entry is grayed out for me too but you can download a later version here:
http://www.seidea.com/2013/01/03/nokia-care-suite-pst-5-0-2012-51-4-4/
(don't forget to uninstall the old version before installing the new one!)
What @patrick92260 said about his phone now being identified as RM-821 and even with the Developer phone's product code makes it seem like he did not only flash the phone to a different ROM (with keeping the phone's original identity [model, product code] intact) but he also somehow managed to overwrite the part that holds those "phone identity information" with the ones of the Dev phone.
Maybe this has sthg to do with the version of NCS being used:
-the old version just flashed the ROM but didn't touch the "phone identity information", it allowed to flash to a different product code but refused to flash to a different model (RM-821/RM-820) and even after flashing to a different product code the phone still had it's original product code
-now the new version on the other hand might not only flash the ROM but might also overwrite the "phone identity information" with the ones of the ROM you are flashing and is thereby effectively changing the phones "identity" (model, product code) to the one of the ROM you're flashing.
This is just a theory of mine but when summing up the facts that:
-a few weeks ago I was unable to flash my RM-821 to an AT&T Portico ROM and now @alfaro58 tried it the other way round (flashing his RM-820 with an RM-821 ROM) and we both ended up "soft bricking" our phones and had to re-flash them with the "correct" model's firmware to un-brick them
-a few months ago sb tried to unbrand his Roges RM-820 by flashing an RM-821 ROM and he also ended up soft-bricking it and then had to wait for a few days until a RM-820 ROM became available on Navifirm before he could unbrick his phone by flashing one of those
[email protected] now basically did the same thing that other guy did a a few months ago (flashing an RM-820 with an RM-821 ROM) but instead of soft-bricking his phone it seems that he even managed to not only flash it with an RM-821 ROM but to actually make it an RM-821 phone.
All these facts kinda lead me to that assumption that it might have sthg to do with that new Nokia Care Suite version that was released earlier this month.
If I still had that buggy pre-Portico ROM on my Lumia I wouldn't hesitate trying to flash my RM-821 to a Rogers or AT&T ROM (because those seem to be first in line when it comes to updates - or at least they were this time) but with my phone now working perfectly with that RM-821 Entel ROM and me having several exams during the next few days I'm really not going to wipe my perfectly working phone just to prove this theory right or wrong - I hope you understand that.
@patrick92260 Which version of Nokia Care Suite did you use?
@alfaro58 Maybe you want to install the new NCS version and then try to flash your phone with the RM-821 firmware again using that updated NCS version?
Hello everybody,
My Rogers Lumia 920 (unlocked and pentaband beforehand) was bricked mysteriously overnight and I came across the instructions to unbrick the phone. In my NaviFirm search, I noticed that the Rogers ROMs (releases 1232.2109.1242.1002 i believe) for the RM-820 have disappeared as there are many screenshots of them which were posted a few weeks ago. As a last resort, I flashed the AT&T ROM onto my 920 and I have lost the ability to use my phone on Wind mobile and all other AWS networks. Does anybody by chance have an already downloaded Rogers ROM they could share with me? Are there any other roms for the 920 that don't have the AWS bands disabled?
Thanks in advanced!
TheElse said:
Hello everybody,
My Rogers Lumia 920 (unlocked and pentaband beforehand) was bricked mysteriously overnight and I came across the instructions to unbrick the phone. In my NaviFirm search, I noticed that the Rogers ROMs (releases 1232.2109.1242.1002 i believe) for the RM-820 have disappeared as there are many screenshots of them which were posted a few weeks ago. As a last resort, I flashed the AT&T ROM onto my 920 and I have lost the ability to use my phone on Wind mobile and all other AWS networks. Does anybody by chance have an already downloaded Rogers ROM they could share with me? Are there any other roms for the 920 that don't have the AWS bands disabled?
Thanks in advanced!
Click to expand...
Click to collapse
I just posted links to the Rogers firmware at http://forum.xda-developers.com/showpost.php?p=36686433&postcount=8 .
However, I hate to be the bearer of bad news, but there are reports of the AT&T firmware fully disabling the AWS bands, even if you re-flash the Rogers ROM afterwards. Maybe the posts I've seen are wrong, so by all means give it a try and please let us know the result. :fingers-crossed:
Good Luck!
Wow, thank you so much!!! I'll try it and let you know how it goes.
You have just made my week
Edit: Yeah, the band is still disabled on the Rogers ROM. CURSE YOU AT&T!
Does anybody know how to do a total clearing and re installation of the Rogers ROM then? A bit of a stretch, but hoping this phone won't have to meet Craigslist or something, I love everything about it minus the fact it doesn't work on my network.
Thanks again!
TheElse said:
Wow, thank you so much!!! I'll try it and let you know how it goes.
You have just made my week
Edit: Yeah, the band is still disabled on the Rogers ROM. CURSE YOU AT&T!
Does anybody know how to do a total clearing and re installation of the Rogers ROM then? A bit of a stretch, but hoping this phone won't have to meet Craigslist or something, I love everything about it minus the fact it doesn't work on my network.
Thanks again!
Click to expand...
Click to collapse
After reflashing the rogers rom did you do a factory reset? I really doubt that flashing an at&t rom permanently disables the aws band even after the original rogers rom has been flashed again. That would mean the at&t rom changes a very secure low level area of the phone and it just doesn't seem that likely or anything I've heard of happening before...
TheElse said:
Wow, thank you so much!!! I'll try it and let you know how it goes.
You have just made my week
Edit: Yeah, the band is still disabled on the Rogers ROM. CURSE YOU AT&T!
Does anybody know how to do a total clearing and re installation of the Rogers ROM then? A bit of a stretch, but hoping this phone won't have to meet Craigslist or something, I love everything about it minus the fact it doesn't work on my network.
Thanks again!
Click to expand...
Click to collapse
yea man , same here had a bricked developer phone which I flashed with ATT Rom and now flashed it to Rogers Rom. I am still stuck with Edge on Tmobile :crying:. If only there is a method for a clean installation !
patrick92260 said:
After reflashing the rogers rom did you do a factory reset? I really doubt that flashing an at&t rom permanently disables the aws band even after the original rogers rom has been flashed again. That would mean the at&t rom changes a very secure low level area of the phone and it just doesn't seem that likely or anything I've heard of happening before...
Click to expand...
Click to collapse
By factory reset, do you mean going into about and reset my phone? If so, yep, I tried it and it didn't help recover the aws band. Is there any way to access the system root of the phone, or am I dreaming at this point? Thanks!
TheElse said:
By factory reset, do you mean going into about and reset my phone? If so, yep, I tried it and it didn't help recover the aws band. Is there any way to access the system root of the phone, or am I dreaming at this point? Thanks!
Click to expand...
Click to collapse
Yeah that's what I meant for a reset. The only other way I can even think of getting the AWS back is possibly finding a dialer code that would let you select radio bands. I want to figure this out too b/c I have a sim unlocked at&t lumia that I want to flash the rogers rom to so I can get the AWS band.
patrick92260 said:
Yeah that's what I meant for a reset. The only other way I can even think of getting the AWS back is possibly finding a dialer code that would let you select radio bands. I want to figure this out too b/c I have a sim unlocked at&t lumia that I want to flash the rogers rom to so I can get the AWS band.
Click to expand...
Click to collapse
##3282# (Or ##3282 call) will present you with a thing that lets you change the bands used for 3g and lte, but it doesn't have the aws band (band IV) for selection under 3g D:
TheElse said:
##3282# (Or ##3282 call) will present you with a thing that lets you change the bands used for 3g and lte, but it doesn't have the aws band (band IV) for selection under 3g D:
Click to expand...
Click to collapse
I really have no idea then... But I'm 99% sure after flashing dozens of phones from different companies that the AWS band is not permanently disabled. We just need to find a way to get it back on. Problem is it's probably going to take someone with more technical skills about windows phone 8 (probably searching thru the root directory) to re-enable it.
someone would need to post the baseband of the rogers model and then you can flash the baseband and get your aws band back.
I read somewhere that all the lumias 920 are the same on hardware side, that they only have different softwares and firmware on the inside; rumor has it that if you could get the firmware and baseband that nokia flashes into the dev phones, you could convert any lumia 920 into a dev phone with anything unlocked.
ellokomen said:
someone would need to post the baseband of the rogers model and then you can flash the baseband and get your aws band back.
I read somewhere that all the lumias 920 are the same on hardware side, that they only have different softwares and firmware on the inside; rumor has it that if you could get the firmware and baseband that nokia flashes into the dev phones, you could convert any lumia 920 into a dev phone with anything unlocked.
Click to expand...
Click to collapse
If flashing the att rom to a rogers phone installs the att baseband (which disables AWS) then reflashing the original rogers rom would overwrite the att baseband with the original rogers baseband (should re-enable AWS) so I don't think that is the issue.
patrick92260 said:
If flashing the att rom to a rogers phone installs the att baseband (which disables AWS) then reflashing the original rogers rom would overwrite the att baseband with the original rogers baseband (should re-enable AWS) so I don't think that is the issue.
Click to expand...
Click to collapse
The AT&T baseband seems to stick though, maybe the AT&T rom has another file that has no equivalent in the rogers ROM that's sole purpose it to lock out the AWS band. Hopefully we can get this fixed soon, I'd love to love the Lumia 920, but at this rate, my eyes are starting to turn to the 8x.
patrick92260 said:
If flashing the att rom to a rogers phone installs the att baseband (which disables AWS) then reflashing the original rogers rom would overwrite the att baseband with the original rogers baseband (should re-enable AWS) so I don't think that is the issue.
Click to expand...
Click to collapse
I don't think the rogers firmware includes the rogers baseband, as the baseband is the one that controls the radios and frequencies of the handset.
One can install a firmware without a baseband and viceversa
ellokomen said:
I don't think the rogers firmware includes the rogers baseband, as the baseband is the one that controls the radios and frequencies of the handset.
One can install a firmware without a baseband and viceversa
Click to expand...
Click to collapse
Hmm, I guess we're basically just hunting for the Rogers baseband then. If only there was a way to browse the system root of a windows phone device D:
TheElse said:
Hmm, I guess we're basically just hunting for the Rogers baseband then. If only there was a way to browse the system root of a windows phone device D:
Click to expand...
Click to collapse
The baseband for my stock at&t 920 with the portico ota is 1.0.202075.3. Someone who has a stock rogers 920 that didn't flash the att rom what is your baseband version? (about - more info) Then we need to compare and see what the baseband is on a rogers phone that has lost the AWS band.
patrick92260 said:
The baseband for my stock at&t 920 with the portico ota is 1.0.202075.3. Someone who has a stock rogers 920 that didn't flash the att rom what is your baseband version? (about - more info) Then we need to compare and see what the baseband is on a rogers phone that has lost the AWS band.
Click to expand...
Click to collapse
I just updated my phone to portico and it seems that I've got the same baseband as you. Can anybody with a stock Rogers ROM post their baseband? After updating, my phone popped up with a new message when I put in my wind sim. It said "Phone mode changes. Your phone is now in GSM mode." I have no idea if you can change modes or anything like that.
Hey guys, I just wanted to jump in here and say that I'm having the same issues. I have a BUILD Dev phone that was bricked -> flashed AT&T -> flashed Rogers and the AWS band is disabled / vanished.
I've contacted Nokia Experts and was told the only option at the moment was to get me a new phone... and I've been waiting for months, lol. I'm thinking that they're going to send me a standard unlocked L920 without AWS bands but that's a bridge I'll cross when or if I get there... I was also told that the repair center did not have the ability to fix this problem and when I asked for the original firmware I was told they (Nokia Experts) did not have it.
Someone HAS to know what's going on here and how to fix it!
If anyone finds a way to get the AWS band back I'm willing to PayPal them $100. Maybe those with more skill will help if we offer financial incentive?
I'm in the US on T-Mobile for reference.
What we need to figure out first is what the baseband is on a stock rogers 920 that has never had the att firmware flashed on it. If it is different then it looks like you'll have to wait this out until nokia comes out with new firmware that has an upgraded baseband and hopefully that brings back the AWS
What about the base band from a Dev device like mine? If the Rogers would work as a reference point then I'd imagine the Dev base band would work too.
There are several users here with them. I can't provide mine because It's been flashed as I mentioned, but I'm currently running 1.0.202075.3 as well as others in this thread.
Onyx Z32 said:
What about the base band from a Dev device like mine? If the Rogers would work as a reference point then I'd imagine the Dev base band would work too.
There are several users here with them. I can't provide mine because It's been flashed as I mentioned, but I'm currently running 1.0.202075.3 as well as others in this thread.
Click to expand...
Click to collapse
Is there a way to port TouchXPlorer to WP8? I think it has access to the system directory on WP7 but I've never actually used it before. That might help us extract the correct baseband.
Hey,
So I recently flashed my ATT Lumia 920 to the Rogers pre-portico rom, then did an OTA. When I tried to flash back, I keep getting an error message regarding the FUU. I then tried to flash to the RM 821 international developer Rom, and then back to ATT, but that didn't work as well.
So, does anyone know of a way to get back to the ATT rom? Also, has any one tried going from Rogers to the PWBASSY light rom? Will that allow me to flash back to ATT? I've tried flashing back to both pre and post portico ATT, from both pre and post Portico Rogers roms, and still nothing...
same there. stick with Rogers latest rom now.
DyeLongJustice said:
Hey,
So I recently flashed my ATT Lumia 920 to the Rogers pre-portico rom, then did an OTA. When I tried to flash back, I keep getting an error message regarding the FUU. I then tried to flash to the RM 821 international developer Rom, and then back to ATT, but that didn't work as well.
So, does anyone know of a way to get back to the ATT rom? Also, has any one tried going from Rogers to the PWBASSY light rom? Will that allow me to flash back to ATT? I've tried flashing back to both pre and post portico ATT, from both pre and post Portico Rogers roms, and still nothing...
Click to expand...
Click to collapse
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..."
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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?
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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?