System Update Failed? Here is Possible Fix

[shahram Ali]

This Is For those Who Stuck At Android 9 In WW Roms With ZS660KL Model
This Method Will Use Raw Firmware so there is risks if you do something wrong and maybe data loss so always backup​

Bootloader Must Be Unlocked

How To Flash Raw Rom:​

1-Bootloader Must be Unlocked! (To change fingerprint to ww and relock the bootloader to get OTA) If you are already on WW fingerprint this step aint needed or you want to stay on cn fingerprint just skip)
2-Install adb and fastboot
3-Download and extract the raw version you want i will give some below
4- reboot the phone to fastboot mode and connect it to the pc Use Side Port
5-in the raw firmware folder double click flashall_AFT.cmd This will take sometime and no progress will be shown so all you have to do is to wait till the phone reboot or get black screen if you got black screen just hold vol down and power button for some seconds
6-if your Fingerprint is cn Change it to WW With root explorer you can find posta about this step by step (skip this if you are already on WW Fingerprint)

Downloads:
Android 10:
https://drive.google.com/file/d/1NQI7SyCfPkBA15dVAim2yhEWD_6p0Kta/view
Android 9:
https://drive.google.com/file/d/16uIlYvFuXDEoRmtosqUwgVgM7aMdhaOp/view
Credits:
the custom droid site for the raw Firmwares
Some info:
After this method You will get ota updates if you relock bootloader
or you can install update zips from asus if you want to keep bootloader unlocked :silly:

 

[joluke]

You don't need to unlock the bootloader to flash the raw firmware. That is stupid to say you do..

 

[shahram Ali]

You don't need to unlock the bootloader to flash the raw firmware. That is stupid to say you do..

The way you say stupid is stupid however mine didn't got flashed just rebooted when tried to flash the raw and couldn't update in system updates or zip files however having some respect ain't bad for your health.

 

[joluke]

The way you say stupid is stupid however mine didn't got flashed just rebooted when tried to flash the raw and couldn't update in system updates or zip files however having some respect ain't bad for your health.

First of all, I just said it was a stupid thing to say because you don't need to unlock the bootloader and you must use the side USB c port to flash via fastboot. Second: learn to interpret proper English because I didn't offend anyone. End of conversation

 

[shahram Ali]

First of all, I just said it was a stupid thing to say because you don't need to unlock the bootloader and you must use the side USB c port to flash via fastboot. Second: learn to interpret proper English because I didn't offend anyone. End of conversation

I mentioned the side port i don't write a paragraph about the phone as homework short and easy fix is the point there is nothing missing in the post so your reply wasn't necessary mate keep it cool :good:

 

[Ricardo55467]

How do I lock the bootloader after this?
I have some apps that wont work, whit the message "This app is not supported in rooted devices, please restore your device"

Thanks

 

[shahram Ali]

How do I lock the bootloader after this?
I have some apps that wont work, whit the message "This app is not supported in rooted devices, please restore your device"

Thanks

You will need to enter an command in fastboot mode but be aware backup every necessary things
If you didn't rooted or touched boot.img just use this command in fastboot and the bootloader will be locked again
fastboot oem asus-csc_lk

 

[Ricardo55467]

You will need to enter an command in fastboot mode but be aware backup every necessary things
If you didn't rooted or touched boot.img just use this command in fastboot and the bootloader will be locked again
fastboot oem asus-csc_lk

What if I rooted?
I just followed all the instructions, I dont think I need my phone to be rooted, I dont want it to be rooted. gpay and some banking apps dont work.
I would like to get back to normal though and locked the boot loader, but keep my android 10 update.

I did all this just to update .

 

[reg66]

What if I rooted?
I just followed all the instructions, I dont think I need my phone to be rooted, I dont want it to be rooted. gpay and some banking apps dont work.
I would like to get back to normal though and locked the boot loader, but keep my android 10 update.

I did all this just to update .

You'll need to flash stock boot img if your rom version (to remove root) before locking bootloader

 

[shahram Ali]

What if I rooted?
I just followed all the instructions, I dont think I need my phone to be rooted, I dont want it to be rooted. gpay and some banking apps dont work.
I would like to get back to normal though and locked the boot loader, but keep my android 10 update.

I did all this just to update .

Just reflash stock boot.img and you can use the command