I tried to cold boot TX2, aka, turn off the power of TX2 then press the POWER BTN(S4) on the TX2 board. Then the green LEDs near the POWER BTN CR1 and CR2, two red LEDs, and the LEDs of the wired network port light up. But the monitor connected via HDMI received no video signal. But after I connected TX2 with my PC via the micro USB wire, I can found the Nvidia USB Device in the
Then I run the flash.sh to flash the TX2 and it succeed. TX2 can boot and the moniter can display the GUI. I use
reboot commond in TX2, aka, warm boot the TX2, it also succeed. I wrote down the IP address of TX2 and can be connected using ssh from my PC.
Then, I turned off the power of TX2 completely, then press the power button to cold boot it. It failed. No video signal output. And I tried to connect the TX2 using ssh but it also failed, thus I cannot get the diagnostic message.
So in summary, I can wake it up by flashing it. And it can be warm booted. But it cannot start up normally as long as the power was turned off.
This TX2 used to be good. Jetpack version is 4.4.1
Thanks a lot