The battery error is caused by one of the connector pins being out of contact from the thermistor built into the battery. So I would look for anything that this lack of connection could be causing. Of course, it is possible that the damage is inside the battery.
What voltage do you have the ttl converter for? Check that you have a good ground connection.
The board will not boot up without the display plugged in.
Last edited by eddie.t.h; 01-15-2022 at 01:14 PM.
|