A factory reset erases all personal data (contacts, messages, call logs, settings) and restores the phone to its original out-of-box state. This is useful if you forgot your security code, the phone is malfunctioning, or you want to sell it.
A factory reset erases all personal data (contacts, messages, call logs, settings) and restores the phone to its original out-of-box state. This is useful if you forgot your security code, the phone is malfunctioning, or you want to sell it.