Secret code is mandatory in the moment if we want to be a mobile phone specialist, the most common use in addition to mobile phones should know the terms, either for the owner, broker, or as a guide or buy a second hand phone. These are the codes :
Nokia access code:
- *#30# : Showing 'private number' of contacting you.
- * # 73 #: Reset the mobile phone timers and game scores (on some phones).
- # * # 7780: Returning to the factory settings (factory settings).
- # * # 2820: The IP address of the Bluetooth device (for the mobile phone has Bluetooth).
- xx #: quick access to the name / phone number in the phone book mobile phone, for example, 20 #.
- Off-key: Pressing with short, to move between the profile.
- * # 3370: Enabling EFR (Enhanced Full Rate) Codec (not applicable in the Symbian mobile phone).
- # # 3370: Disabling EFR codecs.