Works for parental timers and parental controls alike!
OK a lot of you are saying it doesn't work. This is because you have a different code. just look at the codes listed and yours will probably be here, but be patient because it could be the last one on the list. Not to mention Microsoft updates the parental codes a lot. I would still go ahead and try these because yours is probably here. Different codes on the list are marked with *. So just go to system info like I said in the video and try the following.
All codes start with (LT,RT,X,Y,LB,RB) and will be followed by
*Y,A,RT,Y*
*Y,A,RT,Any D pad direction*
*Y,A,RT,Left stick click*
*Y,Left stick click,Y,X*
*B,A,A,A*
*Left,Right,Left,A*
*A,Left stick click,RT,A*
*B,Y,A,Up on D pad*
*B,Y,Left stick click,X*
*A,A,Left,Up*
*Left stick click,RT,A,Y*
*Any D pad direction,RT,A,Y*
*B,Y,A,X*
*Y,Up,Left,Up*
*Up,LB,LB,X*
*Up,Y,X,A*
*Up,Up,Left,Y*
*A,A,Left,Left*
*Up,Y,Y,X*
*Right,Left,Right,A*
*A,Y,RT,Up*
*Up,Left,Down,Right*
*Up,Down,Right,Left*
*Left,Up,Right,X*(mine)
If your code isn't here just do (LT,RT,X,Y,LB,RB) wait 2 seconds, and hit random buttons on your controller until you get it right.