iPad 4 lost power due to VCC Main touch as well as power loss due to Vbatt touch, but this case is more common.
Ways to identify iPad 4 power loss due to touching VCC Main due to Main.
- The machine lost power, plugged in, nothing. Sometimes the charger is hot and has to be pulled out immediately without paying attention, it is very flammable.
- Remove the main using the power supply just supplied and touch.
