How do I fix an unresponsive Apple Pencil?

Quick answer

Charge your Apple Pencil for 10 minutes (plug into iPad for Pencil 1, attach to side for Pencil 2)
Still not working? Try restarting Bluetooth or re-pairing your Pencil

If Apple Pencil is acting unresponsive, it's most likely out of battery. Try charging your pencil:

Let it charge for about 10 minutes, then try using it again.

You may need to re-establish a connection with your iPad:

On your iPad, try turning Bluetooth off and on - this can restart the connection
Check that your Apple Pencil's tip is securely tightened

You'll likely need to charge your Pencil and force it to re-pair with the iPad:

Let the Apple Pencil charge for at least one hour using the charging instructions above
Remove Pencil from Bluetooth settings: Go to Bluetooth settings on your iPad and tap "Forget This Device" next to your Pencil
Re-pair your Pencil: Plug it into your iPad (or attach to side) with Bluetooth enabled, and follow the pairing dialog that appears
Test it out: Give it a try in Astropad again once it's successfully paired

We recommend contacting Apple Support for additional help with your Apple Pencil.