[SlingRah]

Well, I'm having a bit of a problem... i tried to download the jellybean update on my nexus 7. as the update was finishing, i got an error message (the dead android with a red exclamation point above him). I couldn't do anything, so i tried resetting. I got the Google screen, and then the booting screen... and then the booting screen... and then the booting screen... ext... I looked up several tutorials on how to fix this, but none seem to work. when i tried to open recovery mode i got a no command error. I did some further research and figured out how to open android system recovery. I then tried to wipe all the data on the device and reset it. I restarted the device and waited... and waited... and waited... again, it still wont boot. I'm starting to freak out. Please help.