*#7370# To format Phone. enter password 12345. phone restart and format completely. *#92702689# [*#war0anty#] takes you to a secret menu with 6 choices: 1. Displays Serial Number. 2. Displays the Month and Year of Manufacture (0997) 3. Displays (if there) the date where the phone was purchased (MMYY) 4. Displays the date of the last repairment - if found (0000) 5. makes you capebel of transferring user data if you have the gear for it 6. shows how many hours the phone has been on *#7780# reset to factory settings. *#67705646# This will clear the LCD display(operator logo). If you forgot wallet code for Nokia S60 phone, use this code reset: *#7370925538# Note, your data in the wallet will be erased. Phone will ask you the lock code. Default lock code is: 12345 Press *#3925538# to delete the contents and code of wallet. *#7328748263373738# resets security code. Default security code is 12345 *#67705646# This will clear the LCD display(operator logo). If you forgot wallet code for Nokia S60 phone, use this code reset: *#7370925538# Note, your data in the wallet will be erased. Phone will ask you the lock code. Default lock code is: 12345 *#3925538# to delete the contents and code of wallet. Press *#5511# *#5512# *#5513# *#5514# in nokia 1600,1650,1208,1209 and see magic ! Press and hold "0" on the main screen to open wap browser.