Unlock bootloader tool not working.

Not work for me.

I installed the bootloader unlock app and tried to unlock 
but it failed and says 'an unknown error occurs which maybe a network connection issue'.But my wifi is working correctly. Please help me to unlock my bootloader. I really need to unlock my bootloader because I don't want to stay in marshmallow version anymore. I have to install lineage os 14.1 and for that I have to install custom recovery but without unlocking bootloader I can't install that. I tried so many times to unlock bootloader but I had to face the same problem every time. I need a solution badly. Please help me out  

P.s: I downgraded my phone marshmallow to lollipop and try this tool but I faced the same problem.

Hello rfoysal58
Please try clearing app data of the unlock tool, and then try changing a network environment and try again.
If you still can not unlock, please provide your phone serial number to be via prviate message, thank you

I have same problem...
I can't unlock bootloader in android 6.0.1

bill2_chang_ASUS posted on 2017/8/7 20:52
Hello rfoysal58
Please try clearing app data of the unlock tool, and then try changing a network env ...

I followed your method but still I'm facing the same problem. I'm sending you my phone's serial number.

bill2_chang_ASUS posted on 2017/8/8 06:52
Hello rfoysal58
Please try clearing app data of the unlock tool, and then try changing a network env ...

Hey, bill chang, will the ZenFone 2 Laser ZE550KL receive Zen UI 4.0 all features, such as removal of bloatwares, lighter UI, etc?

Check the facebook group's pinned post.   In that u got unlocker tool that will work. 

anyone have solutions about this problem?

juliusintaranipur posted on 2017/8/28 22:47
I have same problem...
I can't unlock bootloader in android 6.0.1

hey bro try this link because i have a same problem with same build number and karnel version
https://drive.google.com/file/d/ ... U/view?usp=drivesdk