My friend bought xiaomi phone and he brought it to me saying the phone is not good and gets heated up very quickly. So I have some good knowledge about mobiles thought may be I could look into whats happening inside the phone.
So I downloaded some apps and tried to remove extra apps and make phone lighter, did everything but still phone was laggy and was heating up, I told my friend to take it to service centre so after a week he came back to me saying the problem still persists and he was not happy with the phone as camera was also bot good. So it was a bad buy for him