Jetson TX2 not booting (or displaying)

So I tried to put an image to the jetson bord with

dd if=~/disk_image.img of = / dev/sda

Unfortunately I got an error message when it was copying the image. I then shutdown the Jetson board.

Since then it does not boot up. When I power on the board it shows nothing on the connected screen.

Are you booting to a USB or SATA hard drive (describe whatever drive you use, including whether it uses external power or power from the connecting cable)? Does the system boot when the drive is not connected? Did you ever flash it to somewhere other than “mmcblk0p1”?