Hi guys, i bought my appletv2 box a few months ago, managed to get it jailborken, inastalled atv flash, xmbc (nightly biuld), and all works fine.
the only issues i have is when im using Navi x it sometimes freezes, not a problem but i have to turn the box on and off, then i have to plug my laptop in and do the boot tethered from season pass program, this is doing my head in, is there any version i can install that can boot on its on when unplugged?
the ipsw file i have is AppleTV2,1_4.4.2_9A336a_Restore.ipsw
What I would suggest is to plug your aTV into your computer in DFU mode and run TinyUmbrella (google it). This will allow you to save your SHSH blobs (as long as Apple is still signing the 4.3 firmware).
When you have the device in DFU mode (easiest way is to leave it unplugged, hold Menu+Play/Pause and plug the device in to the USB port after 7 seconds release the Menu+Play/Pause and the device should be in DFU mode). Once in DFU mode download and run a program called USBVIEW (google for it as well) this will give you a list of devices connected via USB. Look for your Apple device (it should also say DFU in the name. When you select it, it will give you an ECID number. Write this down or copy it to the clip board.
In TinyUmbrella click on the Advanced tab and uncheck Request SHSH Blobs from Cydia. Click back to the general tab and click Manual ECID. Enter the name of the device (unless you changed it it should be Apple TV) and then enter the ECID and click Create Custom Device. Once this is done select the device on the left and click Save SHSH Blobs. What you should see, hopefully, is it display 4.3 and 4.4.2 if so you can flash the 4.3 IOS and run an untethered jailbreak.
Note in order to flash the 4.3 you may need to edit the host file to point to Cydia and run the TSS Server in TinyUmbrella. This will cause iTunes to look at Cydia for the SHSH blobs and allow you to restore.
I would recommend downloading the AppleTV2,1_4.3.0_8F455_Restore.ipsw and in Seas0nPass hold the Shift Key (assuming Windows) and click on Create IPSW, this will allow you to search for the 4.3 IPSW and create the custom IPSW with the jailbreak.
Note I recently did this and it took literally 4 days to get the Seas0nPass IPSW…