I have a c1905 here. It says bootloader can be unlocked, so I got my code and did the command, then ran into the "stuck at boot logo" problem some other poeple have also reported. The suggested solution was to flash the latest stock image again, so I did that. It boots up normally then, but when I try to flash TWRP via fastboot I get "command not allowed"- error. So I guess the bootloader didn't stay unlocked after flashing the firmware again? I dont have the "OEM unlocked" option in the developer settings either. Repeated the steps several times, but it's always the same outcome. Stuck at boot, reflash, no "OEM" in developer and TWRP flashing fails.
Any Idea how to fix that?