- From the Home screen, choose Settings.
- Select General.
- Reset may be found by scrolling down and tapping it.
- Choose Reset all settings from the drop-down menu.
- Alternatively, you may reset your network settings and address Gmail app difficulties caused by network faults and glitches by performing a network settings reset.
- Continue by entering your device's passcode.
- Then validate that the settings have been reset.
Wait until your iPhone has completely restarted before attempting to access the Gmail app to verify if it is operating properly.