This tutorial only works for T-Mobile LG L90 D415. If your model number is D405, D405n or D410, please use this method to unlock the bootloader.
Caution: I am not responsible for you bricking your device or causing any kind of damage to it. You follow this guide AT YOUR OWN RISK! That being said, let’s get to the unlocking!
What you need before Unlocking Bootloader?
How to Unlock Bootloader on T-Mobile LG L90 D415
LG L90 Phone Photos – LG Cell Phone Pictures
LG Cell Phone Related Posts
a little bit explanation on how to back up
the download mode and laf issue…