Ok with these new sets some may want to use the walls as a freestanding piece and not use it as a storage or mobil set .
First get a small slotted screwdriver .
With your hand holding the set use the screwdriver to pop out the corner tabs . Keep holding pressure on the backing plate to not allow the tabs to snap back in .
![](http://img441.imageshack.us/img441/513/p1010011fn3.jpg)
with the screwdriver gently pry the upper center tab out and the rear plate will release
![](http://img377.imageshack.us/img377/2572/p1010013eo6.jpg)
![](http://img441.imageshack.us/img441/8592/p1010014xc3.jpg)
The backing plate has the two tabs on the upper corner and the one in the upper middle and the two bottom tabs that act like a hinge when the uppers are released
![](http://img402.imageshack.us/img402/8229/p1010016us9.jpg)
Note : the 4776 was a bit harder do to the configuration of the set . On the 4775 I was able to do it with out a screw driver and simply grasp the handle w/ one hand and spread the upper corner out w/ the other and twist the back off . ( it has been over 100 degrees here so the plastic is warm )
![](http://img135.imageshack.us/img135/7173/p10100031qx6.jpg)