Software update

You can always use a computer to update your iPhone by connecting your iPhone to it.

Please review this guide by Apple ➔ Update your iPhone, iPad, or iPod touch - Apple Support. Focus on update your iPhone by using a computer section.

Axel F.

Try a Reset ALL Settings.

This is usually the last resort since it resets all your personalised features back to factory defaults

Go to Settings > General > Reset > Reset All Settings

• • This resets to default everything in Settings, including notifications, alerts, brightness, and clock settings like wake up alarms
  • Resetting all settings also reverts all your personalised and customised features like wallpapers and accessibility settings back to factory defaults.
  • Performing this action does not impact any of your personal device data, including photos, texts, documents, and other files
  • You need to reconfigure these settings once your iPhone or iDevice restarts