'''++@subki_hussin++'''
overheating when the battery is inserted is pretty indicative of a short circuit. Could be a shorted battery as well as a bad power circuitry etc. Exchange the battery for a new one and see if that resolves anything. After that you will have to start disassembling your GoPro and check for any visible damage etc. Use these guides [[Topic:GoPro Hero4 Silver]] for that. Post some images of your boards etc. with your question so that we can see what you see Here is how you do that [guide|21499]