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[UNOFFICIAL] Bootloader unlock program

122 posts
Thanks Meter: 497
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#include <std_disclaimer.h>

 * Your warranty is now void.
 * We are not responsible for bricked devices, dead SD cards,
 * thermonuclear war, or you getting fired because the alarm app failed. Please
 * do some research if you have any concerns about features included in this ROM
 * before flashing it! YOU are choosing to make these modifications, and if
 * you point the finger at us for messing up your device, we will laugh at you.
* I've test on 14.1060.1708.70 and older firmware and confirm working *

1. Download the file below
2. Put your phone into fastboot mode (power + volume up) and connect to your computer
3. Run ze554kl_unlock.bat
4. Phone should be unlocked with annoying splash screen ;)

XDA:DevDB Information
Bootloader unlocker, Tool/Utility for the Asus Zenfone 4 (2017)

shakalaca, shakalaca
Source Code:

Version Information
Status: Beta

Created 2017-10-21
Last Updated 2017-10-21
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10th November 2017, 01:54 PM |#2  
Flag Campinas
Thanks Meter: 19
Does this activate dm-verity? Unlock image when the device turns on?
Are they still being updated via OTA?
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13th November 2017, 02:12 AM |#3  
Flag Perth
Thanks Meter: 11
can anyone confirm this actually works
9th December 2017, 06:27 PM |#4  
Junior Member
Thanks Meter: 0
Tell me, please, can I use this method to unlock the bootloader on a similar smartphone Sharp Aquos S2?
20th March 2018, 06:44 AM |#5  
Junior Member
Thanks Meter: 0
Model: ASUS_Z01KD
Android: 7.1.1
is not working. ;(
8th April 2018, 03:23 PM |#6  
Junior Member
Thanks Meter: 1
This works 100 % ( frp bypass ) !
Phone is locked by google account , setting back to factory settings dose not help !
Short story what you have to do :
1 unlock bootloader -> ZF4_ZE554KL_UNLOCK -> ze554kl_unlock.bat
2 install custom recovery like TWRP 3.1
3 disable dm-verity -> flash -> no-verity-opt-encrypt-6.0 , reboot to recovery , do a full system backup
4 this is very important don't forget to flash dm-verity , otherwise boot-loop !
5 clear cache or do a factory reset
6 done !
7 when the phone starts , every time there will be a annoying message , totally normal ,don't worry !

Here are some pictures about the unlocking process
15th April 2018, 06:34 PM |#7  
Junior Member
Thanks Meter: 0
Model: ASUS_Z01KD
Android: 8.0.0
Seems to work!

UPDATE: Relock does not work! Anyone have any suggestions on making this work?
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