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I just can not turn on the EV3 with the SD card. I only turned on it twice. The EV3 stops at [-leJOS EV3] UI and does not go to the next step.

I charged the battery, reinstalled the software inside of the SD card, changed the EV3 for one time, reset the EV3, but still can not turn it on.

I could only turn on it without the SD card.

How can I fix the problem?

  • 1
    Have you tried reformatting the SD? It should only contain a single FAT32 partition. Also check it's not a SDXC card, as they are not supported – shea Sep 26 '15 at 13:57
  • 2
    Have you looked at the leJOS EV3 forum? This question gets asked (and answered) there on an almost daily basis. – Phil B. Sep 26 '15 at 14:14

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