So I've jailbroken a couple of Apple TV's in the past and did something pretty stupid to 3 (yes THREE) Apple TV's. Each of them is flashing rapidly and none of them seem to boot when connected to my TV.
I ran Seas0npass v0.9.5 (775) on all of them. I followed the instructions here: http://support.firecore.com/entries/387605-Jailbreaking-101-Seas0nPass
Unlike the last time I jailbroke ATV2's with Seas0npass years ago, iTunes didn't open as part of a script to install the modified IPSW on the device. The IPSW didn't appear to save to my desktop. I just assumed this was how Seas0npass works these days.
Any how, I got a "firmware restore successful" message and (very stupidly) performed the process for the other two ATV's I had without testing them. When I connected them via HDMI, each just flashes quickly and they don't boot.
For some reason I couldn't save SHSH blobs using Tiny Umbrella, so I just skipped that step.
The ATVs were running different versions, but two of them were on iOS6: Apple TV2 software 5.1 (5201).
Did I brick these devices? Any ideas?