Dead. That is the only way to describe it. Nothing works. Pulled battery several times. Still dead. Plugged it into the wall with the OEM charger, and no battery. Left for 5 minutes, put the battery in with it still on the charger, nothing.
I never let the battery get down anywhere near dead. I took the SIM out to write the number down for my records. Put it back in, battery back in, and that was all she wrote.
Tried this already: Q10 Won't turn on. - BlackBerry Support Community Forums
Anyone else have any ideas?