Press and hold the power button for 10 seconds. Some "locks" are actually sleep/wake glitches.
It reflashes the T2 chip’s firmware (BridgeOS) and reinstalls the macOS kernel. It can fix a "bricked" Mac that says "Support.apple.com/mac/startup" or a Mac stuck on a black screen. Macbook T2 Bypass Free
If you can boot to recovery, open Terminal and type resetpassword . If the T2 asks for a recovery key and you don’t have it, you are locked. Press and hold the power button for 10 seconds
