The first time I used CHIRP to program this radio it worked great!  Today I wanted to update my radio and I am getting the FAILED TO READ HEADER error message that others have reported. 

When I looked, all my *.img files are the MODDED ones!  Now I am not able to get CHIRP to talk to the radio to download what is on there.

I am attaching my debug log file in case it makes sense to someone on here.

Thanks for any advice!