james holden

Nokia’s E-Series phones have a few codes you can key in to access various hidden features:

• *#06# - Show the serial number (IMEI)
• *#0000# - Show the software version
• *#7370# - Factory reset (the default lock code is 12345)
• *#62209526# - Show the WLAN MAC address
• *#2820# - Show the bluetooth address

Also, if the phone won’t boot and hangs on the startup screen (white background, blue Nokia logo), you can initiate a factory reset by holding *, 3 and the green button.

Some or all of these seem to work for other S60 devices too, eg: N80.