i have had atv flash black on my tav for ages now, but ever since a few updates ago it hasn’t been working properly and i can’t seem to fix the problem!
problem being, every time i disconnect the main power cable, the white light on the front has a hissy fit and tells me i need to connect it via usb again! it never used to do this! so i can’t get atv flash black to load again on it and season on pass will only do a tethered boot which works, until i disconnect the power so i can plug it back into my tv in another room and it starts all that crap again! it also won’t restore in iTunes!
It sounds as if you do not have the latest untethered jailbreak installed? It might be worth re-downloading SeasonPass to ensure that you have the latest version and then repeating the jailbreak process.