Chosen Solution

panic(cpu 0 caller 0xfffffff02abe87e8): userspace watchdog timeout: no successful checkins from thermalmonitord since wake service returned not alive with context : is_alive_func returned unhealthy : current fffffffffffc, mask 7fffffffffff, expected 7fffffffffff. SD: 0 BC: 1 Missing sensor(s): TG0B TG0V service: backboardd, What do i need to replace in this, it reboot after 2-3 mins but if it is not use i doesnt reboot.

More than likely this is a charge port issue. Essentially the phone is expecting check ins from the thermal monitoring service and it’s not getting data from 2 of the sensors (TG0V and TG0B) So the phone shuts off. It could be other things as well, but charge port is where I would start. TG0V I am sure is in that flex. TG0B is battery, and the signal for that may also be carried by the charge port.