I have a 3DRobitics APM v 2.5.2. Everything was working fine with firmware 3.1.5. I attempted to upgrade the firmware to 3.2 and now I cannot connect with the apm board.
When I connect the battery, the power light is green and the ppm/serial data light flashes. Lights A B C do nothing - they used to flash when I connected the battery. The GPS unit, telemetry receiver, and rc receiver all get power - as their lights flash. I can also connect an esc the board with motor and the attached led lights. I can’t arm with the transmitter, and when I connect to the computer via usb (I also leave battery connected) it will not connect to mission planner. I try to re-upgrade the firmware but it gives error “no communication” When I try to connect using terminal – nothing happens. I use the correct port and baud rates, and can see he device working properly in device manager.
Is the board fried – or is there a way to fix it?
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