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zenfone 5 ze620kl unlock bootloader failed

saptoridroid
Star II
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
1 ACCEPTED SOLUTION

Accepted Solutions

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.

View solution in original post

15 REPLIES 15

saptoridroid
Star II
image.png
anyone can help me ?
Thankyou

Aureliannn_ASUS
Moderator
Moderator
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
Star II
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

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.