To load the firmware, you can use only the top port usb back of the cabinet. Other inactive (this is important).
1 Insert usb stick with the firmware restoration in the upper port usb. Enable power button NAS device
2 Wait for the download to the error that there is no disk (if the error was originally)
3 Press the power button and wait for it to NAS device is turned off.
4 Press a thin tool (eg toothpick) reset button and hold it down, press the power button once the device NAS.
5 Expect activity signal indicator usb stick after start flashing Remove "toothpick" from the reset button.
6 Wait for the end of the firmware restoration
(!!!!!Warning!!!!!NAS auto OFF).
WARNING !!! Potential problems can be if usb stick not found in bios NAS. So there is NOT REMOVE out usb stick, several times to enable, disable, enable NAS
Ref Link: http://forum.nas-central.org/viewtopic.php?f=285&t=15911 Download the USB Boot Recovery Tools
