Why Does My Iphone Keep Restarting When Charging. The battery quality is also a factor which may affect your iPhone keeps restarting. Clean your lighting Port or change USB cable iPhone charger.
Check connectors 5 in particular are on properly. If your iOS device restarts or displays the Apple logo or a spinning gear unexpectedly - Apple Support. If that doesnt work you may have damaged the power button assembly and it may be constantly on which is why it keeps rebooting.
In regards to the iPhone restarting try these steps.
3 Replacing your iPhone Battery If Rebooting While Charging. Same as all the other issues this one may occur on every iOS device. Perhaps your phones connection to your wireless carrier is unstable. You can do a force restart by holding the Volume down button and the home button simultaneously.
