sim card registration failed help please

hi i have just had some codes posted for my Nokia 8310 (thanks for that). The only problem is that i typed in 2 codes and now the SIM card registration failed...

it is a BT Cellnet sim card...

now i cant put anymore codes in. what can i do?

please help...

thanks.
:confused: :confused: :confused: :confused:

when you get the message 'sim card registration' failed this means the handset is barred.......nothin much you can do.

either : swap with someone abroad
or: get network provider to unblock it
or: get the uem chip changed and rebuild another imei (illegal)