Originally Posted by daphne
I would leave it on the charger overnight and turn it on again in the morning. If it still doesn't boot up, try connecting it to your computer, assuming you have Desktop Manager installed, and turn it on again.
Thanks for the quick reply. I got impatient and decided to follow the factory reset instructions here
. It's done the install (presumably the same OS version again) and is now "Connecting to device".
I saw "Blackberry Playbook" come up on the screen for a little while, and now it's black again. Hopefully Desktop Manager will tell me when to give up waiting.