Cannot re-unlock Bootloader

ZF Model: ZB570TL
RAM: 3G
Firmware/APP Version: WW_Phone-15.02.1810.347-20181105
Frequency of Occurrence: Always
Rooted: No
APP Name: Unlock Tool

Last edited by oriasdarenz on 2020/4/1 03:25

I have already successfully unlocked my device (S/N: J7AXJZ00B17939P). I even flashed custom recovery and rooted my phone, see https://www.asus.com/zentalk/thread-278232-1-1.html for reference.

I made some tweaks but did not like it so I retracted to my stock firmware, but now my bootloader has locked again and I cannot unlock it. I cannot use the Unlock Tool anymore, it always has that kind of problem even though I have a fine internet connection. Does not matter if I use it at any given time of the day. Can someone message me on how to unlock my bootloader without using the tool? :'( I wanted to re-root my phone because I develop some apps, I want to test how hard someone can hack through my games. Please :'(
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