Jetson TK1 stuck at boot after flash

I followed instructions how to flash. Everything flashed successfully from Ubuntu 14.04 LTS.Now when I boot it every time its stuck at standard boot command line and I cant type anything. last line is … —[ end trace c027b283e120f07e ]—

14 sudo tar xpf Tegra124_Linux_R21.3.0_armhf.tbz2
15 ls -l
16 cd Linux_for_Tegra/rootfs/
17 sudo tar xpf …/…/Tegra124_Linux_R21.3.0_armhf.tbz2
18 cd …/
19 sudo ./
20 sudo ./ jetson-tk1 mmcblk0pl

when I looked up the command history, I noticed a typo in mmcblk0pl. After that I repeated all command with mmcblk0p1 but it’s not help.

Please help me. I do not know what to do.

My mistake in 17, should be so