Can I downgrade PIE to Oreo on U11 Dual SIM? - HTC U11 Questions & Answers

My device: U11 Dualsim Global version runing PIE 3.31.401.1 firmware.
Rooted, cusom recovery, unlocked BL.
2 choise I want to do:
1. un-root, relock BL, back to stock Recovery on PIE.
or
2. downgrade to Oreo, relock BL.
anyone help me!

loveuhp said:
My device: U11 Dualsim Global version runing PIE 3.31.401.1 firmware.
Rooted, cusom recovery, unlocked BL.
2 choise I want to do:
1. un-root, relock BL, back to stock Recovery on PIE.
or
2. downgrade to Oreo, relock BL.
anyone help me!
Click to expand...
Click to collapse
-check you CID
- Download RUU from here --->
- Use RUU Flash method to restore system

Related

[Q] How to Debrand M4

Hi All
I have a totally stock M4 4.2.2 phone from Voda UK
(it has the boot logo from Voda along with pre-loaded network apps)
I just want to make it a stock European version...(UK ideally) with no network logos or apps
End wish is a stock 4.4.4 with root (ideally towelroot or similar) so if I want to...I can unroot and leave untouched/stock
As stated...no htcdev done or anything with unlocking bootloader
Advice please?
!SINGH! said:
Hi All
I have a totally stock M4 4.2.2 phone from Voda UK
(it has the boot logo from Voda along with pre-loaded network apps)
I just want to make it a stock European version...(UK ideally) with no network logos or apps
End wish is a stock 4.4.4 with root (ideally towelroot or similar) so if I want to...I can unroot and leave untouched/stock
As stated...no htcdev done or anything with unlocking bootloader
Advice please?
Click to expand...
Click to collapse
I'm afraid that once you go root ( unless you only use temproot ) you can't go back to absolute stock.
To "transform" it to a European version you'll have to do Super CID, which requires unlocked bootloader & s-off.
htc_one_mini_m4 said:
I'm afraid that once you go root ( unless you only use temproot ) you can't go back to absolute stock.
To "transform" it to a European version you'll have to do Super CID, which requires unlocked bootloader & s-off.
Click to expand...
Click to collapse
Well.. What about..
S-Off....
SuperCiD
flash with stock European rom
Set CID back to the European one...(so it doesn't brick)
Re-lock the bootloader
S-On
That way... I have a stock European Rom 4.4.4 on a stock One Mini
?
!SINGH! said:
Well.. What about..
S-Off....
SuperCiD
flash with stock European rom
Set CID back to the European one...(so it doesn't brick)
Re-lock the bootloader
S-On
That way... I have a stock European Rom 4.4.4 on a stock One Mini
?
Click to expand...
Click to collapse
Not entirely.
If I'm not mistaken ( I'm not a phone freak, just a computer hardware engineer & mediocre software programmer ) you can't re-lock the bootloader like stock.
It displays "Re-Locked" once locked again with fastboot or another tool.
You'll have a stock image, but you won't have the applications that are preloaded in the data partition which gets erased during the Bootloader unlocking process, and that blocks you from flashing any newer OTA updates via the classic method ( like a totally stock phone )

How to relock Bootloader???

Hi all !!!
As soon as I received my ZS551KL, I unlocked bootloader, installed TWRP and rooted it.
I cannot update to Android 8 because my bootloader is unlocked, but I cannot found how to relock it for updating. I have tried fastboot oem lock and fastboot oem relock in fastboot mode without success.
Do you know how to do it?
Thank you so much :good:
You can flash raffyvito's modified Oreo zip, that way you get the stock recovery from which you flash the official Asus zip with the firmware updates, then you flash TWRP again and you're golden. You should check out his thread.
Hi guys. Do we have any news on how to relock the bootloader? Also can someone of you share the stock oreo recovery?

Unlock bootloader v4?

Is there anyway to get an unlocked bootloader? I am still running stock nougat with bootloader v4. Can I flash G930U and unlock bootloader that way? I really just want to install custom ROMS. I have no need for regular root.
bump

Can I relock my already unlocked bootloader ?

Please guys,
I unlocked my bootloader a while ago. Since I'm not using any rooted app or anything I'd like to revert back.
Is it possible to build the bootloader again? With a new fastboot rom maybe, I don't know.
https://forum.xda-developers.com/oneplus-6/help/help-unrooting-relocking-bootloader-t3938600
https://forum.xda-developers.com/oneplus-6/help/oneplus-6-bootloader-relock-t3866287
https://forum.xda-developers.com/oneplus-6/help/return-to-stock-lock-bootloader-how-t3807695
Yes
fastboot rom will not relock bootloader, use msm tool

How can I modify my bootloader?

I've got a JP version xz1c ,which is not suitable to flash the international firmware or unlock the bootloader.
Now I'm on Oreo and I can get a temp root, How can modify bootloader in Android?

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