Originally Posted by speedlever
I also found that it won't work if you shut off the display (press the power button) with the dialer up. But as long as the dialer is not open, my shortcut works 100%.
Good catch - confirmed!
Actually, it works if you toggle vol-up immediately
after going into sleep mode with the power switch. After a few seconds though, nada. I can't think of a situation where I would actually do this though (except by accident).