Question How to downgrade from Android 12 to Android 11 with locked bootloader? - ASUS ROG Phone 5 / 5s

There was a huge performance drop on Android 12, so I want to downgrade to Android 11.
Can I flash the file mentioned in this thread (https://forum.xda-developers.com/t/asus-rog-phone-5-raw-firmware-flash-file-fastboot-ww-rom.4268331/) on a locked bootloader?

Hello, I suppose you are on WW-31.0810.1226.91 firmware, so in order to go back to A11 you should use the provided firmware from ASUS, which is named ''Version Android 12 to Android 11''.
You download it from this page https://www.asus.com/supportonly/ROG Phone 5 (ZS673KS)/HelpDesk_BIOS/ and will have this name UL-ASUS_I005_1-ASUS-99.0840.2201.226-1.1.102-user.zip and you rename it to a later version like UL-ASUS_I005_1-ASUS-100.0850.2202.227-1.1.159-user.zip that is a completly arbitrary name but will allow to install an older update over a newer one. I can not guarantee this will work or doesn't break your device, because with RP5 is a matter of luck.
Wish You good luck and let me know.

Related

Question Nokia 2.2 android Pie

Hello! I have a Nokia 2.2 smartphone witch I've got second hand. The problem is that it has installed Android 10 and I want to revert it back to 9.0 because I simply don't like android 10. It is slow even after a hard reset and some apps that I use on my tablet (with android 5.0) do not work on it. I don't care about that security nonsens! I just want to do what I want with my phone. I can't even get root access. Can anyone please help me with a flash file or a method to root it?
No one knows how can I downgrade it ?
When I want to downgrade it on recovery mode it said that I can't install older build rom
So what can I do ?
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.techmesto.com/downgrade-nokia-2-2-from-android-10-to-android-9-pie/amp/&ved=2ahUKEwj_vo7E0r34AhWqSmwGHdT2BvkQFnoECAYQBQ&usg=AOvVaw0qiFvQvPOiMhnKIW0woXj0
[GUIDE] How to unlock the bootloader for Nokia 2.2
To content farms: DO NOT COPY AND PASTE THE ENTIRE GUIDE! Now the last piece of puzzle of Nokia x.2 series bootloader unlock line has been completed, thanks to the help of a member called Woke_World. After I read his procedure, I decided to...
forum.xda-developers.com
This thread has a guide you can follow to flash your phone back to android 9.

Question [TB-J606L] Downgrade from Android 11

Hello. Yesterday i installed latest OTA Android version (TB-J606L_S320030_210923_ROW) and noticed that it is really slow and it has even more bloatware that i don't want. I don't need to root it (because of bloatware removal) as i also need to revert it to default state as it was before update.
1. It is possible to find which version i had before this upgrade?
2. How could i downgrade system to previous version (i think it was Android 10 but i'm not sure)
PS: I successfully downgraded/rooted some devices but as every brand has it's specific way to perform downgrade, i'm asking here. Any advice would help and i'm aware of dangers of downgrading/rooting devices (bricking). In any case, it would be awesome to also link unbricking guide for TB-J606L, just in case It's always better to have plan B.
Update: I found source of roms for my device but i can't recognize which versions are old Android 10 and which are the new Android 11.

Can anyone help me get OTA link? (Requires Unlocked Bootloader and Formatting Device sometimes)

so, in short.
i want to ask for help to get ota updates link.
To get the OTA .zip update link, you're going to have to do a little tricky thing.
Put the original ROM first version of Android 11 or Security Patch Month 7, 8, 9, 10 or Month 11 of 2021.
Requires Unlocked Bootloader and Original Rom (RETBR)
When searching for the link it might look like this: https://dlmgr.gtm.svcmot.com/dl/dlws/1/

Question How to downgrade android version?

Hi,
After my S21+ updated to android 13, my phone often lost signal, did not receive messages and calls. I want to roll it back to android 10 but don't know how to do it.
I found a few tutorials to find the factory images and do flash-all using adb, but I don't know where I can find the factory images of the S21+.
Please guide me in detail if you can.
Sincerely thank you.
First you should unlock your bootloader from official source.
Then browse through incognito mode via any third party browser about official Android 10 rom package for your device.
Find your device manufacturers website from the results and download the package and update through default updater Or flash using official flash tool (recommended).
Remember rolling back or downgrade Android version can brick your device
Depending on how the device is programmed.

Question I wish downgrade to Android 12 without root

Hello. I installed Android 13 and I am not satisfied. I would like to return to Android 12. I understood that it is possible to downgrade by downloading the related file for Android 12 which will be placed in the root directory of the phone and then downgrade from the local installation. Oneplus support told me that they are not allowed to help me... Can you help me with a link where I can download the official, stock version of Oxygen 12? Has anyone successfully done this before? Thank you.

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