Jetson Nano: Green LED turns on briefly then off, no UART output

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

I’m having trouble with my Jetson Nano Developer Kit (SD card version). When I plug in the power, the green LED turns on briefly (a few seconds) and then turns off. I’ve tested both the micro-USB and the 5V barrel jack power inputs, and the result is the same.

To debug, I tried using UART serial output (with a USB-to-TTL adapter, 3.3V logic, 115200 baud, 8N1), but there is no output at all — not even bootloader messages or errors.

Is it possible the board’s bootloader or power management IC is damaged or locked in a failed state? Are there further recovery steps I can take given there is no UART output at all?

Thanks in advance for your support!

3

Did you try to reflash the SD card using SDK manager?

Are you able to make your Jetson configure in to Recovery mode before flashing from the host pc?

4

Hi a01379354,

What’s the Jetpack version in use?

Can your developer kit boot before?

Do you refer to the instruction in Jetson Nano & NX Style - Serial Debug Console - JetsonHacks to capture serial console log?

Have you tried if your devkit with force recovery state can be recognized through USB connected to your host?
You can short REC/GND before power up the board and run lsusb on your host to check.