Boot with sd card

[WayneWWW]

It is wrong to flash image from sdkmanager for that board.

Reason is explained over here.

Jetson Nano Installation Issue: SDK Manager and SD Card Trials

There are several mistake in this post which reveals you don’t know what product you are using now It is a Waveshare custom board which cannot be directly got flashed by sdkmanager. I didn’t mean the flash would fail or you cannot boot up. The problem is interfaces on a custom board may not work properly. For example, that sdcard slot is added by the vendor and it will 100% not work when you flashed this board with any software provided by NVIDIA directly. You should go to Waveshare’s …

Your are using a custom carrier board but not NV devkit.