MicroSD Card not detected (Spresense Main Board + Extension Board)

[rauna]

Hi,

I am trying to run the tflmrt_lenet example using my custom .tflite model. The problem I am facing is that when I load my model on a micro sd card and plug it into the extension board, the sd card is not detected.

ls mnt/ doesn't show sd0.

I suspected that the extension board was broken so I tried pushing the main board and extension board together as written in the FAQ.

Then when I connected a LED & resistor to Pin 13 & GND, the LED turned on but the main board's PWR LED turned off.

Please help me solve this issue, When the main board is on, the extension board is off, and when the extension board is on, the main board turns off.

https://www.hackster.io/contests/Spresense2022/discussion/posts/9547#comment-187300

[rauna]

I tried to disconnect the main board from the extension board and now the main board & extension board turns on. Solution solved!