Are you sure you downloaded the correct firmware?? There are versions for a single-band QDX.? Try an older version and see if that helps.
Correct multiband QDX is here:
Single band is here:
I did note that the latest single band is 1_08, and the screenshot you posted lists 1_10, so it's not likely.? Try the prior release:
73
Evan
AC9TU
73
Evan
AC9TU