The education card early education machine keeps reminding you to re-insert the card.

Bad contact between USB interface and card reader.

Because the front USB interfaces are all led out by wires, it may lead to unstable performance. It is recommended to try the rear interface. Please insert the memory card when it is open. It may be because the memory card computer does not effectively identify the card reader or the card reader has poor contact with the memory card.

You can reinsert the memory card into the card reader correctly and try again. If the problem persists, replace the card reader or memory card.