Just adding that mine has yet to break, but it has gotten easier and easier to put on and take off each time. So, not sure it is totally secure anymore. This is pretty bad design.
This is what I got from Samsung and it works:
John, tell us if this link works for your SM-G900A. How do I Set Up and Use Kids Mode (Parental Controls) on my Samsung Galaxy S? 5? : AT&T Cell Phones | Samsung Thanks! ^Heidi
Re: kids mode????
I agree with the OP, AT&T removing something as simple as this is just bad. Really can't stand them, but they are the cheapest for what I need :(