other8026 If I were in your situation, I'd try factory resetting from recovery. After a factory reset, hopefully the settings app stops crashing so you can enable bootloader unlocking.
I did,
But still the same problem occurs after that,
The system seems corrupt, I have no access to the "system" menu in settings, it crashes still when I try to enter it.
So can't enable oem unlocking.
Looks like my only way in is an ADP update using only update signed by the same key I have used to build at first.