Unlock bootload (asus zenfone max pro m1)

DJac

I am trying to install custom rom (ubuntu touch at first) on my device:
Asus zenfone Max pro M1 - ZB602KL (dual sim)

But, i can't unlock oem (bootload ?)

I try many way to solve it :
1 - become developer of the device
then, Unlock usb debugging (no problem) and unlock oem (but, THE CASE DON'T EXISTE on the parameters)

2 - So, I tap ##CHECKIN## on the phone interface (I get the return "checkin succed"), but the case "oem unlock" not appeared.

3 - I tried to unlock with a unlock tool (https://www.thecustomdroid.com/unlock-bootloader-install-twrp-root-asus-zenfone-max-pro-m1/), but it doesn't works :
sometime, the bootloader shutdown and ask to reboot, sometime, the phone reset, but nothing more...

4 - I tried various fastboot commandes :
fastboot oem unlock - 'unknown command'
fastboot flashing unlock - 'unknown command'

5 - I tried some rooting apps :
ASUS "official" Unlock Tool
Magisk
Kingo root
... but doesn't works

Nota :
I notice the UBport installer detect my kernel as ASUS_X00T_2 (and it is)
I notices that the fastboot commandes not always work : the commande 'fastboot oem device-info
' give sometime 'FAILED - unknown command' an sometime the answer needed... (without reason)
I read that the AMD processor of my computer can cause difficulties with ASUS's fastboot mode...

Is there an other solution to unlock the bootloader ?

MrT10001

@DJac The only way to unlock the bootloader is to use the unlock tool. There is no other way round it.

Download this zip(you already have) and you'll get 2 folders 'unlock' and drivers
https://drive.google.com/open?id=1YpezCedaRWGDS9WW7UaXXyyBod0Bk5qp
Install the drivers and go the 'unlock' folder
Reboot your phone to fastboot mode by pressing volume up + power on at the same time.
Connect it to pc and open unlock.bat in 'unlock' folder
Done

You need a windows machine to run it, it is easier. I had issues getting it to run in Linux. The Windows drivers can be flakey too, so your device may not be seen by the PC in fastboot.

When you connect the device to the PC in fastboot mode, make sure it is detected and run the "unlock.cmd" and the bootloader will unlock. Shutdown the device and start it up again and set up Android.

EDIT - check here

DJac

@MrT10001 Thank you.
I already tried this method, but, not with your files... So to be continued...
I keep in touch.

DJac

@MrT10001 So
1st time : the bootloader shutdown with this laconic message "press any key to shut down"
2nd time : the commande windows close quickely and... nothing apprently. I push the recovery image (fastboot flash recovery XXX.img) - return to the "laconic message". But now, the 'fastboot device' commande obtain unidentify device ('????????? fastboot')
3th time : same as the 1st, but i return to bootload mode. And the phone reboot (as factory reset)
When i whant to flash recovery :
'Warning: skip copying recovery image avb footer (recovery partition size: 0, recovery image size: 27062272)' > I think it is the problème with my computer

DJac

Infact, when i check 'fastboot devices', the next fastboot command give always the "laconic message" on the phone (black windows with "press any key to shutdown").
The other command seems not having this problem

MrT10001

@DJac The bootloader looks like it is unlocked. Boot into Android and set it up - make sure everything works.

Then reboot to fastboot and install the TWRP image.

Then power off. then using the button combo to get to recovery, volume down and power - keep the volume down pressed until you reach TWRP.

DJac

This post is deleted!

DJac

@MrT10001 the result :
PS C:\Users\jacde> fastboot flash recovery "D:\Téléphone\T3 - Asus zenfone max pro M1\Test\twrp-3.2.3-0-X00T-20181214.img"
Warning: skip copying recovery image avb footer (recovery partition size: 0, recovery image size: 27062272).
Sending 'recovery' (26428 KB)
nothing appened after that....

'fastboot flashing get_unlock_ability' give :
(bootloader) get_unlock_ability: 0
OKAY [ 0.001s]

MrT10001

@DJac Yes it's an ASUS phone, you have to unlock the bootloader through the unlock tool. Try fastboot boot recovery.img and see what happens.

This phone was not easy to work out, that’s why I put up what worked for me in the forum and it has worked every time.