- From the Home screen, select Settings.
- Select General.
- A reset can be found by scrolling down and tapping it.
- Select Reset all of the settings to the defaults.
- To continue, enter your device passcode if requested.
- Then press to confirm that the settings have been reset.
Your iPhone will reboot after the reset. Wait until it has completely restarted before enabling only the necessary functions and configuring choices in accordance with your previous preferences prior to the problem occurring.