zenfone 5 ze620kl unlock bootloader failed

[saptoridroid]

HI,
I used asus unlock bootloader apk with version 9.1.0.7_180912
firmware version ww_15_0616_1803_8
it showed error message "...an error occured... maybe network problem..."
I have been tried so many times with very fast wifi and lte network.
Is there any last apk for unlocking bootloader or other method ?
Thank you

[saptoridroid]

anyone can help me ?
Thankyou

[Aureliannn_ASUS]

Hi, this model has stopped maintaining the Unlock Device App, sorry for any inconvenience caused, thank you for your support and love for ASUS products.

[saptoridroid]

Hi @Aureliannnn_ASUS
Thanks for your latest information
Is there any way to unlock this bootloader ?
Or i will stuck forever with asus room without any official update. My issue is battery drain on latest asus room android 9

[ErwinGau · Accepted solution]

Yes there is, but you have to go through several ROM-Updates

1. Update to the newest official Asus Android 9 ROM (V16...) with Asus Updater - needed  for the next step
2. Install Asus Android 10 beta (save to internal storage and let auto-detect) (BEWARE - this will erase all your data - factory reset, backup before) - only in this version you can unlock bootloader
3. Unlock Bootloader (BEWARE - again all your data and apps will be erased - factory reset) with adb, connect phone to USB, send following commands

   1. Check if connected, should give you the device number

adb devices​

•  Reboot into bootloader (fastboot)

adb reboot-bootloader​

• Fetch encryption key into file

fastboot getvar secret-key-opt > secret.txt​

• Get name of bootloader partition

fastboot oem get_random_partition​

results in: "(bootloader) nameOfpartition "

• Flash and unlock partition with secret key

fastboot flash nameOfpartition secret.txt​

• Set Unlocking ability

fastboot flashing get_unlock_ability​

• Unlock

fastboot flashing unlock​

and

fastboot flashing unlock_critical

• Checking if everything done (all "true")

fastboot oem device-info​

• Reboot

fastboot reboot​

you will get warning that device is unlocked an unsecure, then ROM will do Factory-Reset

• Now you have the options to restore the Asus ROM or install Custom Recovery (OrangeFox or TWRP) which then actually can install Custom ROMs (crDroid or PixelExperience available to my knowledge). But this is another topic, I tried but wasnt satisfied because crDroid did not restore my Google Account Backup and PixelExperience did not finish Setup. Maybe I try again later.