I’m encountering a persistent issue with my Jetson Nano Developer Kit (J48 jumper correctly placed for barrel jack power). When I connect the power supply, the green LED turns on briefly (for about 1-2 seconds) and then immediately turns off. The fan does not spin at all, and there’s no display output on HDMI.
Here’s what I’ve already tried and verified:
SD Card Flashing: Successfully flashed the jetson-nano-jp461-sd-card-image.zip (JetPack 4.6.1) onto a 64GB MicroSD card using Balena Etcher. Etcher reported “Flash Complete!” and verified the write.
Power Supply: I am using the original/recommended 5V 4A barrel jack power supply .
Jumper J48: Confirmed the J48 jumper is correctly installed on the pins to select barrel jack power input.
Peripherals: Attempted to boot with absolutely no peripherals connected (no HDMI, keyboard, mouse, USB devices, Ethernet), just the SD card and the power supply. The issue persists.
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I’m happy to help you troubleshoot the issue with your Jetson Nano Developer Kit.
Based on the symptoms you described, it’s possible that the issue is related to the power supply or the board itself. Here are some potential causes and troubleshooting steps:
Power Supply: The green LED turning on briefly and then turning off could indicate a power supply issue. Make sure that the power supply is sufficient for the Jetson Nano. The recommended power supply for the Jetson Nano is 5V, 2.5A. If you’re using a different power supply, try using the recommended one to see if it makes a difference.
J48 Jumper: You’ve confirmed that the J48 jumper is correctly installed on the pins to select barrel jack power input. However, double-check that the jumper is securely in place and not loose.
SD Card: You’ve successfully flashed the JetPack 461 image onto a 64GB MicroSD card using Balena Etcher. However, try using a different SD card to rule out any issues with the current one.
Board: It’s possible that the issue is with the Jetson Nano board itself. Try using a different Jetson Nano board to see if the issue persists.
HDMI: You’ve mentioned that there’s no display output on HDMI. Try using a different HDMI cable or a different monitor to rule out any issues with the current setup.
Fan: The fan not spinning at all could indicate a power supply issue or a problem with the fan itself. Try using a different fan or checking the fan connections to ensure they’re secure.
Boot Process: The fact that the green LED turns on briefly and then turns off could indicate a problem with the boot process. Try using a serial console to see if you can get any debug output during the boot process.
To further troubleshoot the issue, you can try the following:
Use a serial console to get debug output during the boot process. This can help you identify if there are any issues with the boot process or if the board is crashing during boot.
Try booting the board with a minimal configuration (e.g., no HDMI, no USB devices, etc.) to see if the issue persists.
Check the board’s power consumption to ensure it’s within the recommended range.
Try using a different power supply or a different power source (e.g., USB power) to see if the issue persists.
If none of these troubleshooting steps resolve the issue, it’s possible that there’s a hardware problem with the board. In this case, you may want to contact NVIDIA support or the board manufacturer for further assistance.
In comparison to other Jetson boards, the Jetson Nano is a relatively low-power board, and it’s possible that the issue is related to the power supply or the board’s power management. The Jetson TX2 series, for example, has a more robust power management system and may not exhibit the same issues.
I hope this helps you troubleshoot the issue with your Jetson Nano Developer Kit. If you have any further questions or need more assistance, feel free to ask!
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Hello and thank you for your reply, even if it was generated automatically.
I’d like to clarify that all of the troubleshooting steps mentioned in your message have already been carried out, as detailed in my initial post. Here’s a brief summary:
✅ Power supply: I’m using a proper 5V / 4A power adapter (official/recommended), tested and functional.
✅ Jumper J48: Properly installed to select barrel jack input.
✅ SD card: JetPack 4.6.1 image flashed successfully on a 64GB MicroSD card using Balena Etcher. Verified OK.
✅ Minimal boot setup: Tried with no peripherals connected (no HDMI, USB, keyboard, etc.).
❌ Result: The green LED turns on for about 1 second, then shuts off. No fan activity, no HDMI output, and no sign of boot.
I do not have another Jetson board to test with, and there is no serial console output, which strongly suggests a critical hardware failure preventing the board from powering up.
As I mentioned in my original post, the board was handed out during the Gemma Developer Day Paris event by the Google and NVIDIA teams (specifically by Asier Arranz from NVIDIA).
NVIDIA support (Dan) advised me to post here so that the technical team can confirm whether this board is eligible for an RMA.
I’m happy to provide any further proof of receipt or photos if needed.
Thank you in advance for your assistance and confirmation.