With a brand new phone, the codes you input should have opened up the Add Airtime selection on the Prepaid menu. With an already activated phone, which does not have Add Airtime opened, you would have to add airtime via the web site or by calling TracFone and the codes from that, should open the selection.
Originally Posted by gnitgnat
Older phones like the Nokia 1221 (TDMA) do not have that capability.
T-Mobile customer since 2005. If T-Mobile acquires Sprint, I just might go back to postpaid...