Nokia Access Codes:
* # 30 #: Displays the private number 'to contact you.
* # 73 #: Reset phone timers and game scores (on some phones).
* # 7780 #: Restore factory settings (factory settings).
* # 2820 #: Bluetooth device IP address (for mobile phones that have Bluetooth).
xx #: quick access to a telephone number / mobile phone book, for example 20 #. Off button: Pressing with short, to switch between profiles.
* 3370 #: Enable EFR (Enhanced Full Rate) Codec (not applicable on Symbian phones).
# 3370 #: Disable EFR Codec.
* # 4270 #: Enable Half Rate Codec.
* # 4270 #: Disable Half Rate Codec.
* # 0000 #: Displays the phone's software version.
* # 9999 #: Code of alternatives if * # 0000 # does not work.
* # 06 #: Seeing the IMEI number (International Mobile Equipment Identity).
* # 21 #: Checking the numbers on the "Call All" is used.
* # 2640 #: Displays phone security code is used.
* # 43 #: Checking the status of "Call Waiting".
* # 61 #: To check the caller's number are diverted when you do not answer.
* # 62 #: Checking the caller number is diverted when your phone out of reach.
* # 67 #: Checking the caller number is diverted when your phone is busy.
** 21 * number #: Turn on "All Call" in the numbers required.
** 61 * number #: Turn on "No Reply" at the number required.
** 67 * number #: Turn on "On Bussy" in the numbers required.
* # 67705646 #: Changing the logo operator logo on Nokia 3310 and 3330.
* # 746025625 #: Displays the SIM Clock status.
* # 7760 #: Displays the manufacturer's code (most of the old type mobile phone).
* # 92702689 #: Cultivation:
1. Serial Numbers,
2. Date Made
3. Date of Purchase,
4. Date of last repair,
5.Transfer user data. Exit from this mode must restart the phone (on some phones).