Fastboot commands for @OnePlus 5T:
oem unlock
oem lock
oem enable-charger-screen
oem disable-charger-screen
oem off-mode-charge
oem select-display-panel
oem device-info
flashing get_unlock_ability
flashing unlock
flashing lock
flashing unlock_critical
flashing lock_critical
"The critical unlock goes a step further and allows users to flash custom bootloaders"http://www.androidpolice.com/2015/11/15/psa-unlocking-the-nexus-6p-bootloader-requires-the-new-flashing-command-likely-to-become-common-for-many-devices-in-the-future/ …