Can't boot the JetPack SDK of Jetson Orin Nano for the first time!

Hi all,
This is the 1st time to use the Jetson Orin Nano kit. I have followed the instructions on their website but the OS did not launch.
Here is the instructions link: Jetson Orin Nano Developer Kit Getting Started | NVIDIA Developer
The issues are:
1- After finish burning the image on the SD card using Etcher, I found more than one portion on the SD card, is that normal?
2- When the system starts, I can see Nvidia image and then this message pops up “WARNING: Test Key is used.**” “L4Tauncher: Attempting Direct Boot”

I have been trying for 2 days and I hope I can solve it.

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I am also in trouble with the same problem
And among the answers to similar questions, it is said, “Use SDK to flush SDCARD,” and I would appreciate it if you could guide me in detail as a Windows user.

I just figured out the solution for our problem. I think you already ordered the Jetson from Amazon.
The problem that the delivered machine is not compatible with JetPack 6.0. So after several trials, my recommendation is to use JetPack 5.1.1 or 5.1.2 and it will successfully work ( JetPack SDK 5.1.2 | NVIDIA Developer)

Just try and keep my updated!

Thanks . It works ^^

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