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my iPhone charges well and everything works normally but it gets hot and shows battery drain in about 4-5 hours, even if the phone is switched off. Ddo you have an idea what is wrong with it? The battery is okay. When the battery is completely discharged I have to put another battery into the phone to switch it on. It is a hardware problem, I am sure about that. Regards

try a new battery mine did this but ok now with new battery