Yeah “fastboot --set-active=b” (Slot Change is not allowed in Lock State) and “fastboot flashing unlock” (Flashing Unlock is not allowed) doesn’t work either because OEM is locked.
If I try to “fastboot reboot recovery” it says “unknown reboot target”.
Even if I try to “fastboot reboot emergency” I get back to fastboot mode. I hope firehose files can even help me if this happens…