same has happend to my fxtec pro1 yesterday it just suddenly turned off and no matter what I do, it just won't turn back on.
I've emailed support but since it's been over two years, I don't think they can help.
on windows device manager it shows 'QUSB_BULK' when pluged in via usb.
I think it's either software or hardware issue, I never rooted the device or flashed it with any other image.