Same results here. The QHYCFW3 gives me the same error message "Firmware must be higher than" .

I sent a support request to QHY to see if they could help. Firmware update? No answer yet.

Did you find a solution to get the QHYCFW3 to work in KSTARS?

KStars
Version 3.4.3

From the "Profile Editor - KStars" it shows support for
QHYCFW1
QHYCFW2
QHYCFW3

I can connect using QHYCFW2 but I can't spin the filter wheel.

The whole reason I purchased a QHYCFW3 is because KSTARS showed it supported all three versions. Big bummer if QHYCFW3 doesn't work in KSTARS.

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