D-Link ShareCenter DNS-320 User Manual page 194

Section 4 - Configuration
3. Go to System Management, USB Devices. Under USB Storage
Information, you will see detailed information on the device you
plugged into the DNS-320. You can connect an Android device but
enable USB debugging.
4. When the backup is complete, the flashing blue LED will become
solid blue. Click and hold the USB button at the front and the DNS-
320 unmounts the device.
D-Link ShareCenter DNS-320 User Manual 190