Common problems
Won't charge or charges slowly
Charging problems are usually a worn cable, lint in the port, or an old battery, in roughly that order.
Signs
Only charges at certain angles; charger cord has to be held; battery jumps from 30% to off; charging takes all night.
Try this first
Try a different cable and wall plug. Look in the port with a flashlight: pocket lint packs in tight. A wooden toothpick can lift it out gently. Never use metal.
What we do
We clean or replace the charging port, test the battery health, and replace the battery if it's worn out.