Hi,
We are a medical device startup company. We have purchased 4 jetson nano computers from the registered supplier in Israel, and two of them do not turn on. Once we connect to power, only the green LED turns on, but nothing else happens. Could you please suggest what can be the issue?
hello user28973,
had you flash the board before? please refer to Getting Started with Jetson Nano Developer Kit.
you may follow the guidance to prepare your microSD card. thanks
Just a note: If you are depending on video output to determine if the device is powered on, then this is the incorrect way to determine that. There are lots of ways video can fail even if the system is otherwise up and running. Serial console is your friend there:
https://www.jetsonhacks.com/2019/04/19/jetson-nano-serial-console/
Also note that SD card models do still need the Jetson itself flashed so the QSPI content matches the SD card content. eMMC non-dev-kit models never have content, and you have to expect if those are involved, then you must flash. If you think the unit has failed, but you never used it before, then you should expect the need to flash at least once for pretty much any model.
Hi,
Still not working, I am using the same SD card for other Jetson nano, and all working fine, except one which has never worked. It only turns on the green light.
Regards
Yousef
Was the failing unit flashed with the same release as the others? I don’t mean the SD card, I mean the module itself. The SD card modules have QSPI memory used in boot before the SD card is ever touched.
If you cannot flash the QSPI of an SD card Nano model, then there is probably hardware failure. If the QSPI content is the wrong software release, then chances are your SD card won’t work because of that.
If you are able to flash the QSPI with the correct release, and boot still fails, then you’d need a serial console log. That log would probably indicate either software problems or hardware failure and give you that answer as to whether the hardware itself has failed.
Hi,
I am not a developer, I am not familiar with what you are talking about. Are you a Nividia support service provider?
Regards
Yousef
I don’t work for NVIDIA. I am just a developer who has spent a lot of time with Jetsons.
The short story is that you need to flash the Jetson itself if the software on the Jetson is not the correct version to work with your SD card content. The SD card is not the only content used for boot. This tends to confuse people who come from the world of desktop PCs. Those PCs actually have both hardware and software which supports booting (the BIOS), but embedded systems do not have this, and so the SD card models have additional memory similar to a hard drive partition using a type of memory known as “QSPI-NOR”. The type of memory is somewhat irrelevant, and the take-away lesson is that this memory is flashed via the JetPack/SDK Manager software while the Jetson is in recovery mode.
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