Nokia 3100 Unlock help

I dont know what to do here.... there is no option for a 3100 phone

Nokia 3100
IMEI: 352509004983643
USA - AT&T

Thanks

the 3100 is a type 2 phone so just choose Nokia 7210...it's the Network and country that are more important

you should use code 1 first, if that does not work then try 7