Secret kode for Nokia

*#06# ; Display imei
*#0000# ; Shows software version
*#746025625# ; Shows if your phone supports sim clock stopping
*#92702689# ; Displays various info, repair date, purchase date etc
*3370# ; Activates enhanced full rate
#3370# ; Deactivates enhanced full rate

*4370# ; Activates enhanced half rate
#4370# ; Deactivates enhanced half rate
XX# ; position in phone (where x is 1-9)
*#2820# ; Bluetooth imformation/ address
*#7220# ; Enables gprs pcch
*#3925538# ; Deletes wallet (6310, 6310i tested)
*#67705646# ; Clears operator logo on some versions of 3310 and 3330
*#pw+xxxxxxxxxx+x# ; sim losk status (where x is the master unlock code) status sim
*#7370# ; Software reset (7650)