Nokia Lumia 820
When you restore the factory default settings, all personal settings are reset. Follow these instructions to restore the factory default settings.
All phone data will be deleted. Data on your SIM isn't deleted.
1. Find "about"
- Slide your finger left on the display.
- Press Settings.
- Press about.
- Press reset your phone.
- Press yes to accept.
- Press yes to confirm.
- Wait a moment while the factory default settings are restored.
- Follow the instructions on the display to set up your phone and prepare it for use.