Problems with go

I uploaded beta firmware to take advantage of beatsource 30 day promo and that was all good. The problem came when i tried to switch the unit off, it simply wont. Keeps recyling then restarting. Ive tried using usb to downgrade firmware to 1.52 and it wont just keeps recycling. What can i do this machine is now doing my nut in, feel like throwing it out the window. fixed. I pressed the USB button and on off and held until twiched off. It must of reset the computer as it works now. You can close this thread