CUDA 7.0 install issue on Jetson TX1

Hello everyone, I met the problem with installing cud 7.0 on my Jetson Board

I followed instruction from this website, and until the step 6, during the data copying, I think I moved my laptop an, which caused the micro-B disconnected to my laptop. After that, I tried to power on the TX1 board, and it did not show anything, no display, no use signals and anything, only the power light on.