This trick is mainly use when your mobile face Booting Problem. Sometimes S60 mobiles displays blank Screen when Switch on the Mobile. In that situation this trick is more helpful. Try at your own risk.!!
Step1: Charging capacity must be 60% above.Step2: Remove Ur SIM and MMC.Step3: Hold these buttons key 3+call key+ * key now switch on ur mobile. Step4: if succeed. Your mobile is ready to Format. It indicate on ur MobileNote: for this format you will lose your phone memory files, contacts.