We had a Firebox X1000 model R6264S, and the power supply died. We purchased another one cheaply from Ebay, but I cannot find instructions anywhere about how to reset this device to factory defaults so I can reconfigure it. If anyone here has experience with this, I would appreciate it. (I cannot find any reset buttons on the front or back of it.)

I have tried holding the up button the front, and it says "Starting SysB..." before mentioning that it is going into "Loopback mode" but I am not sure what to do next or even which port to use after doing this step.