Nokia Secret Codes

. (1)To checking the IMEI Number: (a) Type *#06# (2)To reset factory settings: (b) Type *#7780# (3) Clear the LCD display (operator logo): (c) Type *#67705646# (4) To view software version: (d) Type *#0000# (5) To view Bluetooth device address: (e) Type *#2820# (6) Sim clock allowed status: (f) Type *#746025625# (7) To resets security code: (g) Type *# 7328748263373738# (8) Shows if sim have restrictions: (h) Type # pw +1234567890+1# (9) Enhanced Full Rate Codec (EFR) activation: (i) Type *#3370# (10) Increase battery life by 30%: (g) Type *#3370* & Phone will automatically restart due to increase battery life by 30% because phone receives less signal from network. (11) Half Rate Codec activation.: (h) Type *#4720# (12) Half Rate Codec deactivation: (i) Type *#4720* (13) To delete the contents and code of wallet: (j) Type *#3925538#