I've got a very sick s7 g930f, it's an international unlocked version. I'm in the US and using tmobile as the cell carrier. In preparation for an oreo upgrade I'm running a rooted nougat rom tgp with twrp 3.2.3, I decided to update my modem and bootloader. Well, very very bad idea, lost signal, can't dial, no IMEI number, no mobile network, no phone number, all of that is showing as unknown. I had a backup of my efs partition, I took it about a year ago and it made two files one efs date.tar.gz and radio date.tar.gz, extracting both of those revealed a efs.img and a radio.img file.
I atempted first to reflash a known stock modem and bootloader, these failed, until I restore the efs.img image to the efs partition. I did it like:
that worked, in and of I could now flash the stock nougat modem, this went without a problem. The problem now is the bootloader that was flashed it's bl_xxs which means my phone now thinks it's branded, which is probably why it isn't working. I need to flash a bl_xxu unbranded image and hopefully things will work. where do I get an unbranded bl_xxu nougat img file and how do I flash it when I do to the boot partition? And how do I flash that radio.img file and to which partition? Help appreciated.
Here u go guys,
The Ofiicial Oreo firmware R16NWG935FXXU2ERD5
- Its a TWRP Backup
- Contains UNTOUCHED System,Baseband and boot image.
Steps for Galaxy S7:
- Extract zip (R16NWG935FXXU2ERD5) to your External SD
- Reboot to TWRP
- Wipe system, data, internal sd etc etc (what you do usually when flashing a rom)
- Restore> R16NWG935FXXU2ERD5
>--------------Restore only System
- Flash S7OreoBoot.zip
- Flash no verity zip
- Flash Magisk
- Flash your Country CSC (Use S8 Port CSC for now)
This is only for people who dont want to wait for official OTA and for Devs who wants to make a ROM now
The official firmware might get uploaded on sammobile after 2-3 days
The backup is untouched so everything is present in this (bloat and useless apps too)
Debloat apps with titanium backup and report back if u face any issues.
Make sure to debloat SecuritylogAgent. It keeps bugging you that unauthorised actions have been detected and stuff lol
Thanks to @andrei1412 for providing S7 Flat Boot and Modem files
Thank you dude, i reflashed my device with Odin but everytime i flashed twrp again it will turn yellow and the screen want response.
Every Original Samsung stuff seems to be normal, only TWRP want work anymore. :-/