[Swordmaker]

The judges could have as easily ordered the owner of the phone to give up the password

That has already been ruled on. Judges can order you to reveal something in your mind but you are not required to testify against yourself.

[Nifster]

Sand paper your finger tips. Or wash a lot. That will remove ridges. Also if your hands are sticky the finger print reader doesn’t work well. Also if you don’t place the proper finger on the pad it won’t work