Gaming Replace UMD Door Back Cover For PSP 3000

[RedBaron]

Before I try and replace the UMD Door Back Cover For PSP 3000 I was after a bit of advice on how to do it, Tried to find how to do it on the net but no luck
Please help
Ps Is it difficult to replace the case on a 3000

 

[RedBaron]

I just found a way to do it without pulling apart the PSP, very easy, all you need is a piece of cotton and a small screw driver