No display on jetson orin nano developer kit

Hello,

I flashed the Jetpack 6.1 image on a 128Go microSD card using balena etcher 1.19.21 on a linux machine running on Ubuntu 22.04.5.
Then I inserted the microSD in the jetson board with mouse and keyboard also connected. When I turn on the jetson orin nano card nothing happens, no display, no power on the keyboard and mouse…
I tried different image versions but still the same result.

Is there a way to debug the board even if I don’t have a USB to TTL adaptor?

Regards

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