How to install new Apple updates to jailbroken AppleTV 2? I just jailbroke mine and the autoupdate feature informed of a new update (4.4.2). I hit install and all seemed well, except now the apple symbol is showing on my TV and the AppleTV 2 is flashing its white light.
You cannot successfully apply new Apple updates to a jailbroken ATV2. If you have tried this then your system is almost certainly no longer in a working state and your only option is to restore the ATV2 via iTunes to get it working again. You can either restore it to a non-jailbroken state with the 4.4.2 software, or back to a ‘clean’ jailbroken state (without any changes you made after your last jailbreak).
Note that at the moment the only jSeasonPass ailbreak for the 4.4.x series of Apple software is a tethered one (meaning it needs to be connected to your PC/Mac anytime you lose power and need to reboot). If you want an untethered jailbreak then this is currently only available for the 4.3 Apple software.