OverviewNokia 3620Shrek

Press the Power button to turn off your phone. Then hold down the "*" key, the "3" key, the Call button, and the Power button. As soon as the Nokia logo appears, release the keys. Type...

The device must be turned on. Using the Dialer or keyboard, enter the proposed code: *#7370#. Then enter your password or the default one: 12345. That's it! After these steps, the device will be reset.

From the Home Screen, open "Settings". In Settings select "Phone" and "Phone management". After that, choose "Factory settings". Press "Delete data and restore" to...