Mindstorm EV3 no longer recognises SD card I followed the instructions to install leJOS on an SD card, to get Java support for the Mindstorms EV3 brio. The brick detected the leJOS files and processed the whole installation procedure successfully. However, at the end of the installation process the brick rebooted. Since then the SD card is no longer recognised by the brick.

I tried to format the SD card again to repeat the installation procedure, but the brick boots into the standard menu without recognising the SD card.

Any idea to get the SD card working again?
From the leJOS forum posts, I think your best bet is to try another SD card and use the officially recommended SD card creator tools to format and populate your new card.