iOS 5.0.1 was released to update and fix issues that drained the iPhone 's battery . Users of Apple 's iPhone 4S and other iOS 5 operated phones reported shorter battery lives . Comment:
iOS 5.0.1 was released to update and fix issues that drained the iPhone 's battery . Users of Apple 's iPhone 4S and other iOS 5 operated phones reported shorter battery lives . Apple admitted that iOS 5 had battery performance issues .