Jetson dont read the sd and turn off the green light

hi! I have an issue with my nano. Firstly, I try to install the jetpack on a new Sd card with more space, but it take a long for running (4 hours installing things without show me any interface) so I disconnect the nano and try with my other SD card, and now none of both start, the green light goes off, even the hdmi seens dont work.

any idea? (Sorry for my English btw)

You can try to reflash the board with sdkmanager.

for that, is necessary the jack power? or can be the microusb?

Please refer to these pages on the wiki and forums:

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