Hi, I've got a problem with the original motherboard and I've replaced with another used. The new motherboard had kitkat installed, and I've upgraded to lollipop. I've noticed that normally use the phone the cpu temp reach temperature between 45-55 c, all the area near the camera become hot at the touch, same thing on the upper side screen that should be about where the cpu is located. Also the battery last few hours . Maybe that the new motherboard is damaged? Or maybe the battery that is bad?How to check what's the problem? Thanks
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