Not possible to upgrade from 5.0.2 to 5.2? (ATV2)

Is it not possible to upgrade an ATV2 running 5.0.2 to verion 5.2? I’m trying to figure out a way to do this so I can avoid having to do the tethered boot song and dance, but I know it may not be possible.

I’ve tried TinyUmbrella but I get an error 11 when I try to restore the ATV2 using the 5.2 ipsw.


It’s not possible without saved blobs for version 5.2

But why not do an untethered jailbreak on 5.0.2?

I’m running 5.0.2 right. It’s pretty unstable with the Plex client and I want to switch to PlexConnect which runs better on 5.2. Guess I may need to do the tethered boot. Thanks!