Nubian Z9 mobile phone How to restore factory settings

Note: Restore factory settings The user-defined data on the phone will all be erased, including SMS, contacts, photos, installer games.

1 said before we restore the factory settings will lose data, so please back up the mobile data, backup good after we click on the desktop "set" "Other" below click "Restore Factory Settings" button, as shown in the following figure

2 Here we can choose "format mobile phone storage" and "Delete Application" after we click "Restore the Phone factory settings", "Confirm reset" can be.

OK, after we click on the confirmation reset will start to delete the data on the phone, this process to see how much data on your phone, if less quickly, if more slowly.