Nexus 10 boots into fastboot, but not into anything else

I am stuck with what seams like a dead Nexus 10 or a stupid issue.

If the device is powered off — And I hit vol+ vol- and pwr — It boots into fastboot. After that, no joy. I get black screen if I attempt to start (No Google logo even). I get black screen when I try recovery. I simply cannot get past fastboot.

Things I have attempted:

  1. Disconnect / Reconnect Battery
  2. Erased Cache
  3. Finally flash-all with Manta Image (successful)

Still after all that, it boots straight to black screen. Something is royally screwed, or I am missing something glaring .. Suggestions?