While my iPhone 4s is charging in sleep mode it restarts itself!
My iPhone 4s keeps restarting itself while on charge, it doesn't do it if I set it to never sleep but when it is in normal sleep mode ie screen is black due to it not being used after a specified space of time, it charges and then after a minute give or take it restarts itself. The screen is still black then the Apple logo appears for a few seconds, screen goes to home page and is still charging then if it is left to go back into sleep mode the cycle starts again. I had a new charge port fitted 6 months ago due to it not holding its charge, there are no battery charging issues and it holds its battery life ok. I have done the usual soft reset, tried cleaning the charge ports with a soft brush, powered it off then on again but nothing seems to work. It has all the current updates and the last 0% - 100% charge was done 6 days ago.
If anyone can help then I would be very greatful