Hi,
My Jetson nano 2GB is not booting up when powered ON. I had changed the SD card and downloaded the image file once more from the Nvidia site. Also connected ttl and checked for log, no data was observed there. Any idea what the issue is? Any other troubleshooting method that I have missed?
There are significant differences between a commercial module on a third party carrier board, versus a developer’s kit. The former supports eMMC memory, while the latter only uses an SD card.
Assuming this is a dev kit with SD card, then you probably need to flash the actual Jetson one time. There is QSPI memory on the module itself which contains what is essentially the software version of a BIOS and boot content. If that is not present in a compatible version, then I would expect the SD card boot to fail.
For reference, L4T is what actually flashes, and is what you’d call Ubuntu after adding NVIDIA drivers. JetPack/SDK Manager is just a GUI front end to the flash software. You’d use a host PC running JetPack/SDKM to flash the Jetson while it is in recovery mode. Recovery mode itself turns the Jetson into a custom USB device, and the flash software running on the host PC is what understands that device. The most recent release an original Nano can use is L4T R32.x. Find your hardware here and check out the software and instructions from that URL:
https://developer.nvidia.com/linux-tegra