Aporte original por: Drake Souter ,
Sounds like it could be a logic board issue. I would also check to make sure all the of screen connectors are properly inserted first. If they are fine and you have swapped the battery and it is still experiencing the same issues either the logic board could have a defect or the pads where the battery contacts the board isn’t getting a solid connection. If you have a spare board lying around it wouldn’t hurt to swap it. Issues like these are hard to diagnose because if you are like me you don’t want to blow $100+ on a part that might or might not fix the issue.