How long has it been from the time the chick pipped to your friend being concerned for its life?
If it's really dried into it's membrane, but it actually pipped it's own breathing hole through, you can help it out. Just go very slow and gentle. Make sure that the membrane is moist enough to remove without tugging at the baby. Be careful of its umbilical cord...if it hasn't finished developing, it could still be absorbing its yolk sac.
I've helped a couple distressed babies hatch. They turned out just fine. One I got to concerned about and jumped the gun... it had pipped the shell, but not broken the membrane on its own. I ended up breaking the membrane for it, and it died in seconds. Just take care, and know that whatever happens you did your best! If you make a mistake, learn from it.
Good Luck!!!