Please try these troubleshooting steps:

• Disconnect the hub from your laptop and all connected devices for at least 5 minutes. Reboot your laptop and reconnect the hub to see if this resolves the issue.

• Check if the SD card has a write-protect switch enabled; if so, disable it by sliding the switch to the unlock position.

• Test with a different device or a different SD card.

• Ensure the card is fully inserted.

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.