So what is a master code?
Well lets assume you have forgotten your security code. The master code is a 10 digit number that will always be accepted as if it were your actual security code.
You can then use the master code to change your security code back to what ever you like. When your Nokia handset asks you for the security code simply enter the master code.
I have not tested this extensively but I believe this will work for all DCT3 and DCT4 handste but not the BB5 range. So this will not work for the newer Nokia's such as 6630, 6680, 6280 and N-series.. etc
Nokia phones that can be unlocked: 1100, 1101, 1110, 1600, 2100, 2300, 2600, 2650, 2652, 3100, 3120, 3200, 3220, 3210, 3230, 3300, 3310, 3330, 3410, 3510, 3510i, 3650, 3660, 5100, 5110, 5130, 5140, 5146, 5210, 5510, 6020, 6021, 6030, 6100, 6101, 6110, 6111, 6130, 6150, 6170, 6210, 6220, 6230, 6230i, 6250, 6260, 6310, 6310i, 6510, 6600, 6610, 6610i, 6650, 6670, 6800, 6810, 6820, 6822, 7110, 7200, 7210, 7250, 7250i, 7260, 7270, 7280 7600, 7610, 7650, 7700, 7710, 8210, 8310, 8800, 8810, 8850, 8890, 8910, 8910i, 9110, 9110i, 9210, 9210i, 9300, 9300i, 9500, and N-Gage, N-Gage QD
download mcode for free here
