Led dosen't turn on but can booting

I have jetson nano from seeedstudio but when I turn on ,
the power led doesn’t turn on but the booting is success with ubuntu 18
how I can trun on the power led? thank you

Hi, you can manually pull R297 (at the top side near to DS3, power LED) to ground to check if power LED on, if not, the LED might have problem.