Box doesn't work

HD box just continually flashes 89:88 endlessly. Power button on box will not turn box off. Box does not respond to X2 remote. (TV does turn on and off from remote.) Have pulled power at least 20 times. Cannot get box to turn off or on or do anything but endless flash 89:88. Setup button will turn power button green, but it reverts to red when any other button is pressed.