[Galaxy s8 Active]Flashing AT&T Firmware to unlocked tmobile device - Sprint Samsung Galaxy S8 Questions & Answers

Have an unlocked tmobile s8 active I'm using on the AT&T network that I'd like to be able to use wifi calling on cause i get lousy cell reception at my place, is it possible to flash the AT&T fireware onto the device? ive already tried using odin and the stock AT&T 8.0 android oreo firmware i found in a different thread but it fails.

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Possible to flash unlocked Samsung Galaxy S6 G920A (AT&T) to G920T (T-Mobile)?

I own an unlocked Samsung G920A which I actually flashed to a G920AZ (Cricket Wireless (who is owned by AT&T)). I now want to flash to T-Mobile as I want to be able to 1. get Marshmallow. Cricket may never. 2. Be able to use WiFi calling and you can only do that with the TMO image (from what I read). I downloaded the G920TUVU3EPD1_G920TTMB3EPD1_G920TUVU3EPD1_HOME.tar and using Odin tried, but it fails.
Is it possible to flash to the T-Mobile firmware/ROM ?
If it is impossible, then I think I would want to go to the G920A again to get Marshmallow 6.0.1, then simply pop the T-Mobile SIM in, update APN, etc. Unfortunate though as the LTE bands all work. Seems sh***y it wouldn't work to use their firmware.

Suggest an international rom for an Unlocked N915T

Hi folks,
I have an American T-mobile factory unlocked Galaxy note edge (SM-N915T) that I use in the UK on Three's network.
I would like to flash an official unlocked international ROM, preferably with a Marshmallow, so I get faster updates (Tmobile is very slow at this) plus no additional Tmobile's widgets and apps.
Any suggestions? I tried flashing a BTU region N915FYXXU1DPC3 via odin but got an error, I imagine it is not compatible with my phone?

Unlocked Sprint Note 5 new firmware help

Ok, so my question ha a few points here. I have been flashing roms for many years but never really though of this until recently as I now have an unlocked phone.
1. As my Sprint Note 5 is unlocked, can I flash say the Unlocked Version of software to the phone taking away carrier branding? I manage a store from another carrier and I hate that when I boot my phone it shows Sprint. I know it will not trip knox as long as it is Official Stock software.
2. If I do flash said Unlocked version software replacing Sprint software, will it change my connection at all? I have seen that flashing ATT software on a Verizon device did manage to improve ATT tower connection however I wonder if this is maybe a placebo effect as opposed to actually changing the bands and connections the device makes.
If you guys could help me out that would be great. :good:
Cheers
There is no unbranded firmware for the Sprint model because well, it is a exclusive model so even if you flash XAS instead of SPR firmware some or all apps will still appear. The only way to get rid of everything Sprint is via custom ROM= tripped KNOX. The SM-N920P cannot run another firmware.

Unlocked AT&T Galaxy S7 Active to Verizon

So, these past couple of days I've been trying to find a way to get my unlocked ATT Galaxy S7 Active to work with Verizon.
Well, I have read and read and can't seem to get it done. I just realized that it was an "active" which means its not a normal galaxy S7, I guess. I have read that flashing with the U firmware would be best, but every time I've found one that I thought would work it never has. I've tried both on a mac using the ported version of odin for mac which I couldn't get to work at all. I have also tried going with the Oreo OS as well as the one before it, but the U versions firmware, and trying to install them with the Odin 3.13 software using Vmware and it just constantly fails. is it even possible to flash the firmware on this model?
I have he ATT Galaxy S7 Active Model number: SM-G891A
NeedAMonitor said:
So, these past couple of days I've been trying to find a way to get my unlocked ATT Galaxy S7 Active to work with Verizon.
Well, I have read and read and can't seem to get it done. I just realized that it was an "active" which means its not a normal galaxy S7, I guess. I have read that flashing with the U firmware would be best, but every time I've found one that I thought would work it never has. I've tried both on a mac using the ported version of odin for mac which I couldn't get to work at all. I have also tried going with the Oreo OS as well as the one before it, but the U versions firmware, and trying to install them with the Odin 3.13 software using Vmware and it just constantly fails. is it even possible to flash the firmware on this model?
I have he ATT Galaxy S7 Active Model number: SM-G891A
Click to expand...
Click to collapse
This is why i never buy branded phones!
The rubbish ATT&T active is on a GSM baseband and Verizon use CDMA so your phone won't work on Verizon until you unlock the CDMA radio software on the phone.
Finally got my g891a on verizon with stock rom and root
I would be really interested to see how you did it. I'm in that situation now. I have the G891A and my carrier is switching from running on ATT network to Verizon. I like this phone (I know it is getting some age on it) and it still does all I need/want and I really don't want to give it up.

Flashing Unlocked or AT&T firmware on unlocked Sprint S7?

Hello, I'm selling my old Galaxy S7 to a friend of mine and he plans on using Straight Talk or any GSM compatible pre-paid network. Using Straight Talk on an unlocked Galaxy S7 wasn't the best experience for me since I'd have issues reconnecting to cellular data and reliability was shaky compared to non-Sprint branded phones.
Someone suggested to flash either AT&T or unlocked firmware on my S7, but I'm not sure if it's safe to do. If so, what it is the most stable firmware?
EDIT: I tried flashing the unlocked firmware and Odin failed. Using v3.13. also got a rev check fail: fused 8 > binary 4
EDIT 2: Downloaded a newer version of the unlocked firmware, was able to flash successfully

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