Yes, let the warm wet paper towel sit over the chick where the shell is stuck, then see if any will come off, just keep going with the wet paper towels until the shell comes off without hurting the chick.
Keep the wet paper towels warm so you don't make the chick cold.
Don't try and pull the shell off dry- you might take the skin off.
To remove the shell, use a warm, wet paper towel to get the shell to loosen up.
Make sure the chick stays warm while you do this, the warm purple pad plus being held in warm hands should help.
To keep the purple pad from...