...
Hold down the Cancel Button and then also press the Back Button (←)
Enter password: 746723 and press the OK Button
Scroll menu using Down Arrow Button (↓) to "Config" and press the OK Button
Select “FLASH RESET
FLASH“
andand press the OK Button
Return to the previous menu by pressing the Cancel Button
Scroll down to “Save and Reset“ and press the OK Button
The card reader should now restart
If this doesn't solve your problem, please contact us.