I had/have the same problem. I now know how to get it into programming mode but the 3 digit codes I have do not work nor does the automatic programming. Is there an updated code list online or an updated users guide.

I still have not been able to find a users guide that mentions simultaneously depressing the mute and select to get into programming mode. What other differences between chd1 and 2 and/or exp and expg? Thanks!!