I suppose you didnt read your radios programming first, then make the changes, then write back to it. If you did read the radio first then what changes did you make in the radio? It will tell you that if you have a button set for AUX A,B,C but do not have an output selected in the funtion port menu for a AUX output. Also really the only thing yout have to program for a headset in that radio is a external PTT. So maybe that is the reason why your headset doesnt work.