No more bios screen after upgrade, orin nano

I went through the steps to upgrade my orin nano to jetpack 6.2 from the JetsonHacks youtube video here: https://www.youtube.com/watch?v=G8OkrUJxnQc

It generally seems to have worked. I have 6.2 running, and even have the higher voltage available.
However, on startup, the green NVIDIA BIOS screen no longer shows up.
I get black for a while, and then suddenly the mouse pointer appears, and ubuntu starts up.
Thus I no longer can get to settings or the boot menu.
Any idea how I get the bios screen back?
I think it was showing 4.something as my bios version, so it did seem a big jump to go to 36.something.
I never did see an bios update progress bar.

Thanks

Hi,
Please check if your Orin Nano module has SD card slot. Current the mode is enabled on the module. For other modules, we will enable the mode in next Jetpack release.

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