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.Read More...