The time I used it for the first time the phone os overheating and drain fast like when I'm playing Shadow Fight 2 for 30 mins the battery reduces more or less 10% and it's overheating and it burns also when it's charging.

Can you please tell your phone's build no?
And please send us your burning picture?

When charging, you'd better turn off the game and the video.

Build No.: BV7000_PRO_Blackview_20170523
When I said "it burns" I mean it hot. The metal(-like) part of the phone where the camera and fingerprint sensor is attached.

karera wrote:

Build No.: BV7000_PRO_Blackview_20170523
When I said "it burns" I mean it hot. The metal(-like) part of the phone where the camera and fingerprint sensor is attached.

It heats up in that area because that is where the cpu and gpu chip is situated, if its a heavy load it will heat up, as for charging it is using a usb type c at 5v 2a which means its delivering charge faster, electricity transfers heat, there is nothing to fear.