I have unlocked A750F android pie bootloader version 4. I want to downgrade to oreo cuz of performance issues. Anyone knows how to downgrade with an unlocked bootloader or how can i create a TWRP flashable zip from official oreo .tar.md5 files (bl,ap,cp,csc).
Related
I prefer the speed and performance of marshmallow on the S7. Where are the correct files I should flash in Odin and which version of Odin should I be using to flash Android 6?
So apparently the camera isn't working after downgrade to 6?
Not something I'm willing to deal with unless the issue has been solved.
You can't downgrade snapdragon S7 models (G930U/T/V/A/P) due to the locked bootloader
Any downgrading would only work on the G930F with OEM unlock
Help root or downgrade or both?
Beanvee7 said:
You can't downgrade snapdragon S7 models (G930U/T/V/A/P) due to the locked bootloader
Any downgrading would only work on the G930F with OEM unlock
Click to expand...
Click to collapse
I have a sm-g930u factory unlocked and Im also trying to get all i need to downgrade from oreo which is havoc on my battery and i dont know if its better to downgrade to laterst nougat or root it and take care of bloatware to help battery drain yet the problem will persist which is that the upgrade is designed for s8 and s9 with octacore processor and the s7 is working harder with a quad core so temp will always be hotter than before and slower than with nougat . Any help with proper step by step in downgrading my factory unlocked phone would be appreciated and any root links as i havent done it in years.
Beanvee7 said:
You can't downgrade snapdragon S7 models (G930U/T/V/A/P) due to the locked bootloader
Any downgrading would only work on the G930F with OEM unlock
Click to expand...
Click to collapse
You can downgrade. You just can't root.
dave678 said:
You can downgrade. You just can't root.
Click to expand...
Click to collapse
thats not true
You can downgrade any version bit loader by flashing the combo firmware and the rooting combo firmware then flash stock nougat system image its basically what the root method is for Rev11/B. If you are just on nougat then you would have to get the combo firmware that matches the bootloader version you have because if you flash my rev11/B root method you are forever stuck on that bootloader and can never use nougat again or have oreo root as there is no eng root boot.img available for oreo root on rev11/B bootloader
jrkruse said:
You can downgrade any version bit loader by flashing the combo firmware and the rooting combo firmware then flash stock nougat system image its basically what the root method is for Rev11/B. If you are just on nougat then you would have to get the combo firmware that matches the bootloader version you have because if you flash my rev11/B root method you are forever stuck on that bootloader and can never use nougat again or have oreo root as there is no eng root boot.img available for oreo root on rev11/B bootloader
Click to expand...
Click to collapse
Oh I meant if you're not rooted.
dave678 said:
Oh I meant if you're not rooted.
Click to expand...
Click to collapse
you can downgrade too marshmallow from any version you have because combo firmware for s7 is marshmallow based and its available for all bootloader versions. You just use the combo bootloaders and boot.img and stock system image then root it
If your still on bit 4 you can just flash stock bit 4 marsmallow and root with marshmallow eng root img
Hi. My s8 plus is at bootloader version 5 now.is possible to flash unlocked version (xaa)? Or change room from Odin? thanks
Also interested. I'm on official Oreo on v5 bootloader on a fresh phone from insurance and trying to get root.
Go to the Verizon section and look there, user @jrkruse has 2 roms posted:
These both work with the new BLv5
Oreo Rom with Xposed/Safestrap; no root
https://forum.xda-developers.com/verizon-galaxy-s8+/development/rom-t3771206
Nougat Rom with Root/Xposed/Safestrap
https://forum.xda-developers.com/ve...nt/root-using-odin-modified-firmware-t3693790
If your wanting root functions these are your only options. While the Oreo doesn't have root, it does have SafeStrap for system file modification and Xposed to run non root plugins.
As far as flashing to U1 firmware there is a thread about flashing to it. You should be able to as long as bootloader matches but don't quote me. I'm still on BL3 and still can flash to U1, root rom, oreo rom, stock rom no problem.
Hi!, i installled Oreo on my S7 g930f but i now have one problem. The ROM binary from oreo is 3, and Nougat use 2, for this reason i cannot to downgrade to nougat. Recently i installed TWRP and a custom Oreo rom.
Its possible to install a custom Nougat rom through TWRP?
Many Thanks!
You should be able to flash a Nougat ROM via TWRP, but you'll have to make sure to flash the bootloader and modem back to Nougat if the ROM doesn't include it as part of its install.
I've gone between Oreo and Nougat a few times, granted my roll backs were using a TWRP backup and not a nougat flash.
Beanvee7 said:
You should be able to flash a Nougat ROM via TWRP, but you'll have to make sure to flash the bootloader and modem back to Nougat if the ROM doesn't include it as part of its install.
I've gone between Oreo and Nougat a few times, granted my roll backs were using a TWRP backup and not a nougat flash.
Click to expand...
Click to collapse
Have you some tutorial teaching how to make this downgrade.
After the update my mobile is Just Call of Emergency, and the patch to solve this just works at Nougat.
I would like to downgrade Xcover 4 G390f from Android 8.1.0 to 7.0. Build number is G390FXXU4BSB3 - bootloader 4. I have the combination file COMBINATION_OXA_FA70_G390FXXU4ASF1. According to: link I should be able to flash the combination file as it is the same bootloader version as phone's. And then I should be able to flash stock Nougat ROM with lower bootloader version. Is that correct? Seem kinda too easy to be true.
Is there any way to downgrade binary 6 to 3 or just downgrade android oreo to marshmallow (ik its the same thing)
If someone ask "why?" touchwiz
It is not possible to lower the binary. This is what it was introduced for.
If the phone allows you to unlock the bootloader and flash TWRP and Custom ROM, then you can try to find a ROM based on an earlier firmware version, but it will no longer be a fully trusted firmware.
ze7zez said:
It is not possible to lower the binary. This is what it was introduced for.
If the phone allows you to unlock the bootloader and flash TWRP and Custom ROM, then you can try to find a ROM based on an earlier firmware version, but it will no longer be a fully trusted firmware.
Click to expand...
Click to collapse
oh ok
thanks