Find "Factory data reset"
Press Settings.

Press All.

Press Backup & reset.

Press Factory data reset.

Restore factory default settings
Press Reset phone.

Press Reset phone 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.
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.
