hi! I have bought some m3 machines, i want to downgrade the firmware with sd card, most of them works fine after changing the firmware, but some of them which has e big black Heath Sink on their control board doesn't work after machine resets.
and now whenever i plug machine in to power all lights(network port, Alarm and Active lights) keeps on and not getting off or flicking.
i have tried both Zynq and H3 image but it still not working.
before changing the firmware they works fine.
any idea?
is there any other image file other than zyng or h3?
thanks guy <3