Well I still seem to have the same issue or similar none of the above solutions have corrected this. Its happening to both PH1 and PH2.1. My computer used to update firmware flawlessly, then one day I couldn’t load firmware for the life of me. Mission planner does connect to working programmed pixhawks, it goes through all the motions of uploading with the exception of “no Heartbeat detected” and just after “program” starts the “ERROR: Operation has timed out” appears.
SD card is good
All peripherals are disconnected including power. I’m using only USB power and known good USB cable.
I have installed MP with .msi countless times
Other computers work…
Whats wrong with my PC… I feel like it was an update. Is windows 7 32 bit still supported??