1.Very good smart phone. don’t use back case . it will help the phone to emit heat quickly. 2.Full lamination screen is very good. seems scratch resistant. even im not using screen protector and case. 3.Charger gets heat up. because the battery is 4000 maHand charger output is 1500 mA. so its natural. 4. Using volte over a very long time can heat your phone temp up.At the time of wifi its ok. 5.Try to close background apps . restrict some of them from using background data wisely by tweaking the settings( app info) . 6. If you have charging indicator problem then just caliberate the battery by downloading a Good app. mine it fixed the battery percentage wrong presentation.