flash att firmware on unlocked s9+ - Samsung Galaxy S9+ Questions & Answers

bought the s9+ direct from samsung unlocked. Didn't realize HD voice, volte an wifi calling wouldn't work. Is there any way to flash the att firmware onto a s9+ (snapdragon model)?

https://forum.xda-developers.com/galaxy-s9-plus/how-to/g965u-g965u1-firmware-links-t3763487
I used this for flashing sprint!

WOrked perfectly, thanks!

Related

S9+ G9650 on T-mobile US for WiFi calling/VoLTE + Root?

Trying to decide whether to get G965FD or G9650 to use with T-mobile US. G9650 will have unlockable bootloader for rooting the device, correct? I realize the device is too new and there is no root for Chinese/HK variant yet but it will be there soon if it has unlocked bootloader.
Will flashing T-mobile US CSC give the VoLTE+WiFi calling features while preserving the unlocked bootloader and root?
The only reason I ask is because Exynos S7/S8+ modem download speeds suck on T-mobile US(10Mbps vs 60Mbps on Qualcomm in same location at same time when I tested). And then G9650 may support band71 as G965FD does not for 600MHz LTE on Tmobile.
Bump...
damn, does S9+ SM-G9650 have or not unlocked bootloader ?
would awesome to have 256gb vs low 128gb on S9+ SM-G965F
It has an unlocked bootloader from what others have posted so far. In fact there is first version of TWRP being tested on it looks like. Not sure if we can flash US CSC on it though. Also the modem on it probably is missing band 71 like international Exynos. There won't be many ROMs out for it but at least you can get root, dual SIM and Snapdragon advantage(as mentioned in reviews) I guess....
I think I'm only going to root if there is a way to go back to stock if I want.
I had an LG V20 on Sprint and I rooted it. Which is fine. All worked well and I was able to uninstall LG related crap I did not want. But with that I could not receive Android updates. I wasn't running a custom ROM, I just wanted root to remove LG installed crap.

S9 + Snapdragon Unlocked Variant

Do you guys know if WiFi calling feature will work on MetroPCS or do I have to flash Metro specific firmware?

Can I flash INS firmware on unlocked s9+ Exynos

I bought the s9+ sm965f direct from samsung unlocked in England (BTU). Didn't knew that HD voice, VOLTE and wifi calling wouldn't work in India. Is there any way to flash the INS firmware onto a s9+ (Exynos 8910 model)?
Used 3 Network SIM in England, now using Jio SIM in India, but not able to make calls due to non availability of VOLTE.
"Service Provider SW ver.
SAOMC_SM-G965G_OXM_BTU_OO_0017
19b55da73b027ece
BTU/BTU/BTU
Build number
R16NW.G965FXXI1ARD4
Were you able to flash INS firmware ?
Yes there is as the there is INS firmware on https://updato.com/ for your model as the Exynos varient covers most of the world including India

Flashing Cricket Firmware Too Att Samsung S6

Hello, I have a
Att samsung Galaxy s6
Samsung-SM-G920A
android version 7.0
Build# NRD90M.G920AUCS7ERA2
I am wanting to flash cricket stock firmware to the device, as I read this would allow the wifi calling feature to work, since in only works on select cricket models, and the cricket s6 is one of them.. it wont turn on on this Att S6
if anyone has cricket firmware for this and its possible can you please help, me.. the only link I found on xda is broken for firmware cricket files
thanks

Custom ROM for Samsung Galaxy J8

I recently bought a Samsung Galaxy J8 from Australia because I lost my phone there. When I came home to India I found out that the Australian J8 does not support VoLTE (Voice over LTE) but I need VoLTE for my Indian sim card to work. So I went to the Samsung service center but they straight away denied any support since I bought this in another country.
The Indian varient J8 supports VoLTE but the Australian one does not even when both the phones have the exact same hardware. So its a software limitation.
Can anyone suggest any method I can use to install any custom ROM that'll support VoLTE.
I'm willing to install anything, root my phone or whatever it takes since I'm never gonna get any warranty on this. So I might as well try everything else.
Amritansu_Mitra said:
I recently bought a Samsung Galaxy J8 from Australia because I lost my phone there. When I came home to India I found out that the Australian J8 does not support VoLTE (Voice over LTE) but I need VoLTE for my Indian sim card to work. So I went to the Samsung service center but they straight away denied any support since I bought this in another country.
The Indian varient J8 supports VoLTE but the Australian one does not even when both the phones have the exact same hardware. So its a software limitation.
Can anyone suggest any method I can use to install any custom ROM that'll support VoLTE.
I'm willing to install anything, root my phone or whatever it takes since I'm never gonna get any warranty on this. So I might as well try everything else.
Click to expand...
Click to collapse
Just download Indian firmware from sammobile and flash via odin, that will contain latest modem for your device. It might bring VoLTE, because I think its software problem.
Bad.Wolf said:
Just download Indian firmware from sammobile and flash via odin, that will contain latest modem for your device. It might bring VoLTE, because I think its software problem.
Click to expand...
Click to collapse
I tried but it won't let me install any other model firmware. My phone's Model Number is SM-J810Y but the phones available in India have model number SM-J810G. So it won't let me install the "G" firmware. I get a failed message.
Do you have any other suggestion?
help
Hi, I wanted to change my ROM but I forgot the OEM. I am stuck with the FRP. Someone would have the U3 COMBINATION for the J810YDXU3BSE1
Please

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