wireless radio attachment

[desser]

hello everyone this site nice, i should of bin here longtime ago. hey im using a sprint ppc 6700, the other day out of nowhere when trying to use the phone it tells me "a wireless radio must be attached to use the phone" what in the world is this? i googled the message and found out im not the only one who has this problem but i havent found any fixes that can help me. can anyone inform me on how to correct this issue? thanks in advance if you can