Why can't my daughters iPad boot up?

Episode 1134 (2:11:06)

Charles from Colton, CA
Apple iPad

Charles' iPad is locked. He's tried the hard restart, but it stops at the black screen with the white Apple logo. Leo thinks that it's just not charged enough. He recommends charging it for a few hours with an iPad charger. Absent that, then the only choice is to take it to the Apple Store. If the iPad was locked out because of a password issue, he may be stuck.