Jetson Nano 2GB first boot problem

I have recently purchased a Jetson Nano 2GB and I’m trying to boot it by using SD card flash file provided by the official website. When I insert my SD card and power up the board I get this on my LED screen (plaese refer to the image provided).

Any one can please tell me what’s the problem?

Looks like some error from sdcard. Can you try different sdcard?