If your laptop does not detect the memory card or you experience read / write errors, try the following steps:

• Make sure the card is fully inserted.

• Test with another device or another SD card.

• Check whether the SD card's write-protect switch is enabled. If it is, slide the switch to the unlocked position.

• Disconnect the hub and all connected devices. Wait at least 5 minutes, restart your laptop, and reconnect the hub.

If all of the steps above cannot help you locate and resolve the problem, please contact Anker Customer Support for further assistance. Briefly mention the steps that you’ve already tried for a faster solution.