Is it only the sidetone audio that is missing?? Do you still have clear audio on receive?
This will take some time to check out as I receive very little on my QMX in West Oregon, I see very few signals being transmitted in the Northwest OR on RBN or qsofinder.com.??All I have is an EFHW hung in a large plum tree for an antenna.? I will have to be patience for a signal that is close enough for me to receive.??
Part of the reason I have enough time to do practice mode CW on the QMX+ and update my easier to follow (for me anyway) .
Paul K7VIQ