iphone 4 runs incredibly slow and lags after upgrading to iOS 7 even when half the memory is empty and the background aps are closed and not refreshed. need to downgrade on iOS 6.1.3 please help
iphone 4 runs incredibly slow and lags after upgrading to iOS 7 even when half the memory is empty and the background aps are closed and not refreshed. need to downgrade on iOS 6.1.3 please help
iPhone 4, iOS 7.0.2