NOKIA
*#06# Display IMEI
*#0000# Shows software version
*#746025625# show if your phone support SIM lock stoppin
*#92702689# display various info
*3370# activaties enhanced full rate
#3370# Deactivaties enhanced full rate
*#4370# Activaties enhanced half rate
#4370# deactivaties enhanced half rate
*#2820# bluetooth information
*#7220# enables GPRS
*#67705646# Clears operator logo on some versions of 3310-3330
*#7370# software reset (be carefull your data will be lost)
*#2028# bluetooth device address
*#746025625# SIM Lock allowed status
*#62209526# display the MAC address of the WLAN adapter, support N80
#pw+1234567890+1# show if SIM have restrictions
*#7328748263373738# Reset security code, default security code is 12345
unlock SP: insert SIM turn phone on and press vol up (arrow keys) for 3 seconds, should say pin code. press C, Then press * message should flash, press * again and 04*old pin*newpin*newpin#