Xiaomi reDmi 4a is an worst phone I have seen.i definately said that it is an heating iron box.while comparing some best mobiles of redmi like note 4, note 3, 3s prime it is an garbage.but they give mobiles for cheaper rate is a good idea and most of the phones have no fault but this phone is having heating issue.xiaomi redmi 4a is a best company I have ever seen it is best comparing to samsung, and other chinese phones it gives us best quality phones I have mentioned above it should avoid heating issue.apart from this I salute redmi for giving us cheapest good quality phones