iPhone 4s battery dies before reach 0%
My iPhone 4S battery is dying when it reaches 40% now it shuts down when it reaches 60%. I don't know what to do. Do I need a new battery??
I also have the same problem. I went to the apple authorised servicer and they did a battery test and conclude that my battery is fine. It is the problem of software. But I've restored my phone in DFU mode and use it without installing any apps and the problem persists. I wonder why and how.