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How to go back to stock from Lineage OS 14.1 without dumb?

Hello,
I want to roll back to stock ROM, because we have Lineage OS no more, and I don't want to stay on undeveloped ROM with poor battery. I want to go back to stock. How I can do it without a dump?
My phone is NEM-L21. Do I need oeminfo and custom.bin for my phone? When I can find it and how to flash it?
Thank you!

radogost said:
Hello,
I want to roll back to stock ROM, because we have Lineage OS no more, and I don't want to stay on undeveloped ROM with poor battery. I want to go back to stock. How I can do it without a dump?
My phone is NEM-L21. Do I need oeminfo and custom.bin for my phone? When I can find it and how to flash it?
Thank you!
Click to expand...
Click to collapse
Wipe system, cache, data from twrp first. Then flash the full update of the stock rom by using the dload method. Wiping everthing before flashing stock rom will also lock your bootloader during stock rom installation.

Can I downgrade back to 5.1.1 with 6.0.1 bootloader and baseband?

Hi all, I recently flashed a 6.0.1 rom and updated the bootloader and baseband to N910TUVS2EQG1. I made a twrp backup before updating from 5.1.1 to 6.0.1. Can I restore that twrp backup on my phone? Would that change the baseband/bootloader back to 5.1.1 or those stay ase 6.0.1? Would the phone work restoring to a 5.1.1 rom using 6.0.1 baseband and bootloader? There are some nice features on the older rom that I like and would like to try restoring it.
Thanks!

daihung1 said:
Hi all, I recently flashed a 6.0.1 rom and updated the bootloader and baseband to N910TUVS2EQG1. I made a twrp backup before updating from 5.1.1 to 6.0.1. Can I restore that twrp backup on my phone? Would that change the baseband/bootloader back to 5.1.1 or those stay ase 6.0.1? Would the phone work restoring to a 5.1.1 rom using 6.0.1 baseband and bootloader? There are some nice features on the older rom that I like and would like to try restoring it.
Thanks!
Click to expand...
Click to collapse
You have to downgrade bootloader/modem to 5.1.1 otherwise your backup will not boot.
If you made full backup from twrp (boot/system/data/efs/modem) then you need just to downgrade the bootloader .
You dont have to flash whole 5.1.1 firmware to downgrade you can just flash bootloader via odin then go to twrp and restore your backup.
Get bootloader from link below
Choose BL in odin
https://www.androidfilehost.com/?fid=457095661767112946
Get modem from link below
Choose CP in odin
https://www.androidfilehost.com/?fid=312978532265371269

Want to go to pure stock

I am on liquid remix pie rom
I want to go back to the official track..
Can i install official ota updates if i flash oreo fastboot rom?
What if i relock my bootloader?

Saadatrm said:
I am on liquid remix pie rom
I want to go back to the official track..
Can i install official ota updates if i flash oreo fastboot rom?
What if i relock my bootloader?
Click to expand...
Click to collapse
What is model number and what region ?
Firmware versions are different by region and device model.
If you have any backup of stock ROM, then you can easily check correct firmware version that was installed on your device.
Another way is to pull/dump "utags" partition. It contains useful information of stock firmware that was previously installed..

____Mdd said:
What is model number and what region ?
Firmware versions are different by region and device model.
If you have any backup of stock ROM, then you can easily check correct firmware version that was installed on your device.
Another way is to pull/dump "utags" partition. It contains useful information of stock firmware that was previously installed..
Click to expand...
Click to collapse
Xt1804, retin.
Indian version...
I think the oreo fastboot rom is same for all regions..

Saadatrm said:
Xt1804, retin.
Indian version...
I think the oreo fastboot rom is same for all regions..
Click to expand...
Click to collapse
You can flash OPS28.65-36 oreo stock ROM from here, https://forum.xda-developers.com/mo...t/moto-g5s-plus-moto-stock-firmwares-t3843626
Skip erase modemst1 and modemst2 commands
For commands and flashing steps : https://forum.xda-developers.com/mo...lash-official-firmware-moto-g5s-plus-t3681018

____Mdd said:
You can flash OPS28.65-36 oreo stock ROM from here, https://forum.xda-developers.com/mo...t/moto-g5s-plus-moto-stock-firmwares-t3843626
Skip erase modemst1 and modemst2 commands
For commands and flashing steps : https://forum.xda-developers.com/mo...lash-official-firmware-moto-g5s-plus-t3681018
Click to expand...
Click to collapse
I will get back the OTAs?
How to relock bootloader thereafter?

____Mdd said:
You can flash OPS28.65-36 oreo stock ROM from here, https://forum.xda-developers.com/mo...t/moto-g5s-plus-moto-stock-firmwares-t3843626
Skip erase modemst1 and modemst2 commands
For commands and flashing steps : https://forum.xda-developers.com/mo...lash-official-firmware-moto-g5s-plus-t3681018
Click to expand...
Click to collapse
why skip xD
Moto fixed persist issue in oreo stock
I reverted custom liquid pie to stock oreo with modemst and worked fine(few times).:good: :fingers-crossed: :laugh:

custom rom is best. keep using custom rom. keep trying different ones.

Stock rom has got its own pros...

Updating vendor firmware Moto X4

Is there a firmware that can be flashed without going back to stock? I have LineageOS and want to update the vendor firmware without going back to stock and losing everything.

viggy96 said:
Is there a firmware that can be flashed without going back to stock? I have LineageOS and want to update the vendor firmware without going back to stock and losing everything.
Click to expand...
Click to collapse
You can flash a newer version of Lineage.

TeamRainless said:
You can flash a newer version of Lineage.
Click to expand...
Click to collapse
That doesn't update the vendor firmware. That only updates the OS.

viggy96 said:
That doesn't update the vendor firmware. That only updates the OS.
Click to expand...
Click to collapse
Ah... So what is your current vendor firmware?

The vendor image is included with the rom. The bootloader and radio can be updated in recovery through adb. I haven't seen any zips that flash them. In my experience, updating the radio and bootloader sometimes ends up in bricks that require the blankflash files to recover.

whats the best way to get a 3t to unmodded 9x firmware?

hi, i have been searching, but i don't see that anyone has asked this question exactly...is there a way to use stock 9.0x firmware on a 3t and LineageOS if i DONT care about wiping? I have a 3T that i currently have Lineage 16 but not current because i am on 5.08 firmware. I could completely wipe phone, given that, would it work to flash stock OxygenOS on the phone (presumably to get 9.0 firmware) and then go through the procedure to install Lineage again?
thanks in advance
to be clear, I am currrently running lineageos 16 (pre 9.x firmware requirement) and stock 5.08 firmware. the system is unlocked (obviously) and i have twrp installed.
what I want is unmodded 9.06 firmware with lineagos 16 and am ok with wiping if i have to.
thanks

tguadagno said:
hi, i have been searching, but i don't see that anyone has asked this question exactly...is there a way to use stock 9.0x firmware on a 3t and LineageOS if i DONT care about wiping? I have a 3T that i currently have Lineage 16 but not current because i am on 5.08 firmware. I could completely wipe phone, given that, would it work to flash stock OxygenOS on the phone (presumably to get 9.0 firmware) and then go through the procedure to install Lineage again?
thanks in advance
to be clear, I am currrently running lineageos 16 (pre 9.x firmware requirement) and stock 5.08 firmware. the system is unlocked (obviously) and i have twrp installed.
what I want is unmodded 9.06 firmware with lineagos 16 and am ok with wiping if i have to.
thanks
Click to expand...
Click to collapse
Because I like my phone unlocked and encrypted, this is what I would do:
- backup my user data to a PC
: Install OOS 9.0.6 full rom
- Format data (wipe>format data) to remove encryption
- boot system (will re-encrypt the data and replace TWRP)
- copy data back to phone
- flash TWRP using fastboot
- install Los 16
Sent from my OnePlus3T using XDA Labs

tguadagno said:
hi, i have been searching, but i don't see that anyone has asked this question exactly...is there a way to use stock 9.0x firmware on a 3t and LineageOS if i DONT care about wiping?
Click to expand...
Click to collapse
It's answered in the official los-16 and official twrp threads. Exactly that. You need to read through the threads, it's not in the OP.
It's basically: flash twrp-3.3.1-0 or later, relock 5.0.x bl, boot to twrp-3.3.1-0 or later and wipe system and format data, teboot to twrp-3.3.1-0 or later and update the gw to 9.0.x. Reboot to twrp-3.3.1-0 or later and flash rom, gapps and otional stuff as usual.
EDIT:
https://forum.xda-developers.com/on...eplus-3-3t-t3866517/post79829810#post79829810