If the product is not recognized, try the followings.
Check the power of a product.
Make sure the product is turned on.
Make sure the power cord is securely plugged into the electrical outlet.
Make sure an outlet is powered on.
If the product is turned off :
Turn on the product, then click [Back].
If the product is turned on but it is not recognized :
Proceed to the next step.
Check the connection between the product and your computer.
Make sure the USB cable is securely connected to the product and to your computer and check that the USB cable is not damaged nor badly crimped.
If you are connecting the product to your computer via a USB hub, connect the product to the first-tier hub from your computer. If the product driver is still not recognized on your computer, try to directly connect the product to your computer without the USB hub.
If you are connecting the product to your computer via a USB hub, make sure the USB hub device is recognized by your computer.
Click [Back] when you check the connection between the product and your computer.