Openbox V5s locked

I was looking around in my V5 Openbox and then trying to exit. Box is now stuck on "LoAd" and i can't do anything with it.I have turned it off, but when i turn it back on the message is still there and i can't seem to unlock it. Any ideas.
Hi does anyone know if your open box does not power up at all is there a comparator that you can change like you can on say a vu box's