Thanks for the video. In my case, I had the Auto Restart Problem (especially during recharge and opening high consume applications like torch and using the mobile with screen high luminosity) but it was simply the battery at the end of its life. A new battery fixed the problem and the phone is now back to show a normal behavior.
this is a temporary fix, only to be done in an emergency (for example if theres data on the phone you absolute MUST save). DO NOT DO THIS if you plan on using this phone any longer. This is an overcurrent protection fuse, it protects the battery and the rest of the phone against overcurrent as the name says. If you dont want to burn your house down while youre sleeping, DONT do this. Buy a new battery, problem solved.
I also have the same phone model and the same problem, no matter where I take it, no one knows the problem and there is no battery in our city, you can order it anywhere, but I can’t wait if it works like this?
May apps in the background are running, try to check, if you are using your data instead of wifi its normal that the battery is draining fast,or last possible problem is the mainboard itseft