Restart the phone normally
Press and hold the Power button
Tap Restart or Reboot
If no Restart option appears, power off the phone
Turn the phone back on
Make sure no volume button is stuck
Remove any case or accessory blocking buttons
Check the notification panel for a Safe Mode option and turn it off if available
Uninstall any recently installed apps if Safe Mode keeps returning
Remove and reinsert the battery if the phone has a removable battery
Perform a factory reset if nothing else works