Is your iPhone behaves sometimes erratic ?
For example when you open applications (i.e. go ipod or email, etc ), it won’t react well for a few seconds or it will behave crazy. Sometime you iPhone screen will freeze or won’t respond at all.
Common iphone issue reported by lots of users are issues with the screen freezing or doesn’t respond. I had the same problem, here is how I fixed. This is a basic iPhone troubleshooting.
Turn Off iPhone and On Again
Turn iPhone off for few seconds and turn it on again. This Should fix the problem.
if iPhone continues to freeze or not respond even after you turn off/on, try resetting it.
Reset iPhone settings
This option won’t delete data or media. It will just reset your preferences
From the Home screen choose Settings > General > Reset > Reset All Settings.