[UNOFFICIAL] Bootloader unlock program

shakalaca · Oct 21, 2017

Code:

#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)

Contributors
shakalaca, shakalaca
Source Code: https://www.androidfilehost.com/?fid=889964283620760073

Version Information
Status: Beta

Created 2017-10-21
Last Updated 2017-10-21

PedroArmindo · Nov 10, 2017

Does this activate dm-verity? Unlock image when the device turns on?
Are they still being updated via OTA?

minilandl · Nov 13, 2017

can anyone confirm this actually works

iva.f · Dec 9, 2017

Tell me, please, can I use this method to unlock the bootloader on a similar smartphone Sharp Aquos S2?

iliken900 · Mar 20, 2018

Model: ASUS_Z01KD
Android: 7.1.1
WW_14.1060.1709.80
is not working. ;(

berci_zsozso · Apr 8, 2018

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

https://ibb.co/bERHxH
https://ibb.co/h8qzBc
https://ibb.co/j7jFjx
https://ibb.co/c38ajx
https://ibb.co/f95zBc

lunger · Apr 15, 2018

Model: ASUS_Z01KD
Android: 8.0.0
WW_15.0405.1803.99
Seems to work!

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

SLASH32 · Jun 8, 2018

Work on Oreo 8.0? I can restore to use warranty?

calamari · Jun 9, 2018

Yes, it works on 8.0, I did all the OTAs first. Not sure on warranty.

Tips:
* Get Developer mode and ADB shell working first (tell the phone to always trust your computer)
* Volume Up+Power on for fastboot mode, Volume Down+Power on for recovery. Long hold power to force phone off (unplug USB first).
* Use this version of TWRP (thanks shakalaca): https://www.androidfilehost.com/?fid=889964283620764455
* no_verity_opt_encrypt 6.0 works: https://build.nethunter.com/android-tools/no-verity-opt-encrypt/
* Make sure your USB cable is unplugged when booting to TWRP recovery or it will hang. You can plug it back in once TWRP loads.

chazan7 · Jul 3, 2018

Is there a possibility to get this to work with a ZD553KL (Selfie)?

grinna · Jul 3, 2018

I've been looking inside has the file relock.bat, does it serve to block the bootloader of zenfone 3 zoom ze553kl ?

aydin.gsm1 · Dec 8, 2018

does this method lose userdata or not?

KaMyKaSii · Dec 23, 2018

berci_zsozso said:
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

https://ibb.co/bERHxH
https://ibb.co/h8qzBc
https://ibb.co/j7jFjx
https://ibb.co/c38ajx
https://ibb.co/f95zBc

lunger said:
Model: ASUS_Z01KD
Android: 8.0.0
WW_15.0405.1803.99
Seems to work!

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

calamari said:
Yes, it works on 8.0, I did all the OTAs first. Not sure on warranty.

Tips:
* Get Developer mode and ADB shell working first (tell the phone to always trust your computer)
* Volume Up+Power on for fastboot mode, Volume Down+Power on for recovery. Long hold power to force phone off (unplug USB first).
* Use this version of TWRP (thanks shakalaca): https://www.androidfilehost.com/?fid=889964283620764455
* no_verity_opt_encrypt 6.0 works: https://build.nethunter.com/android-tools/no-verity-opt-encrypt/
* Make sure your USB cable is unplugged when booting to TWRP recovery or it will hang. You can plug it back in once TWRP loads.

@berci_zsozso @lunger @calamari
Could any of you confirm if this method wipes data or not? Thank you!

KaMyKaSii · Jan 21, 2019

Has anyone here made any updates after using this unofficial method to unlock?

Miguel angelor9 · Feb 28, 2019

I'm with my zenfone 4 model ZE554KL in infinite looping,help me please.

hello my friend. I am with my zenfone 4 model ZE554KL in infinite looping it is with android 8.0 it is possible to unblock the bootloader itself in looping or I have to format before how can I do a hard reset before this file yours is valid for android 8.0 I need your help, I'll wait for your answer, please.:crying::crying:

KaMyKaSii · Feb 28, 2019

Miguel angelor9 said:
hello my friend. I am with my zenfone 4 model ZE554KL in infinite looping it is with android 8.0 it is possible to unblock the bootloader itself in looping or I have to format before how can I do a hard reset before this file yours is valid for android 8.0 I need your help, I'll wait for your answer, please.:crying::crying:

What did you do to keep your device in a bootloop?

Miguel angelor9 · Feb 28, 2019

The problem has already come with the device since I bought zenfone 4

KaMyKaSii said:
What did you do to keep your device in a bootloop?

hello, friend, I just can not say it's already the third time he has entered bootlooping without me doing absolutely nothing. my question is several first I can do the procedure of unlocking the bootloader with the device in bootlooping. secondly if I make a hard reset I start the device normally.third and last these bootloader unlock files are for android 8.0 and 8.1

KaMyKaSii · Feb 28, 2019

Miguel angelor9 said:
hello, friend, I just can not say it's already the third time he has entered bootlooping without me doing absolutely nothing. my question is several first I can do the procedure of unlocking the bootloader with the device in bootlooping. secondly if I make a hard reset I start the device normally.third and last these bootloader unlock files are for android 8.0 and 8.1

From what I know it is possible to unlock the bootloader with the device in bootloop (but since the problem is something in /data). But if it is already the third time that happens, how did you solve the other two times?
And the unofficial unlock method works on Android 8 (ASUS has never released Android 8.1 for Zenfone 4).

abacate123 · Jul 28, 2019

Just wanted to say that this method worked on the Pie beta as well (tried myself), in case someone is wondering whether it works or not.

lejkabasz · Apr 27, 2020

abacate123 said:
Just wanted to say that this method worked on the Pie beta as well (tried myself), in case someone is wondering whether it works or not.

Did you unlock bootloader by official or this one method?

[UNOFFICIAL] Bootloader unlock program

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