How To Format Nokia Symbian S60v2 and S60v3 Phones - N70, E63, E72, E71, N73, C6, N97
Make Sure you have at Least 3/4 Bar of Battery on your Phone. [2.] Backup your contacts list and Personal files e.g Music, Pics etc to Memory card. [3.] Switch-off your Symbian phone. [4.]