Chosen Solution

1)I was watching a random video and it went off and does not start 2)When i try to turn it on the boot screen appears and it goes off again 3)I tried charging it even the charging screen appears and goes off 4)I tried it like a lot of times but it is not turning on.. Some one please answer fast

I think battery or battery circuit (i had same problem with my s3…) try to messure your battery’s voltage (should be >3.2v<4.4v) try enter recovery mode (just google it ) or Download mode, easy fix would be flashing new firmware if you can acces download mode , but any data will be lost