I have a Jetson TK1 that I didn’t use for a while, and then when I tried to use it recently, I got no HDMI output. Next I tried to connect using the DB9 male connector, using an FTDI USB to Serial chip with the RX/TX cables crossed over (null modem cable configuration). DB9/RS-232 Pin 2 = RX, Pin 3 = TX, Pin 5 = GND.
I have repeatedly reset the Jetson TK1 but see nothing coming over the serial.
From my macbook, I am using the program picocom, specifically: picocom -b 115200 /dev/tty.usbserial-A505C7TQ
I can see the TX indicator LED’s light up when I send data over, but the RX indicator LED’s remain dark.
Is there a way to re-flash the Jetson TK1 in this state? I expected to see some sort of bootloader but since I see nothing, I am worried that the board has been irreparably damaged. The board warms up when I disconnect the fan, so the SOC is clearly still consuming a decent amount of power. Any suggestions on how to further troubleshoot?