PSP X button wobbly

[PortPowerPersia]

Hi there, I have a PSP 1000 model, which I've had for years, and over the years through (probably) overuse of the X button, it has gone wobbly. Just running my thumb over it would push it down, which is really annoying when I'm trying to play a game. I have never opened up my PSP before, but if the solve for a wobbly face button is simple then I'm willing to give it a try. However, I'm kind of doubtful about opening it up in case anything goes wrong, since I just upgraded from 5.50 Gen D3 to 6.60 ME 1.6 recently and haven't really tried anything out with the sensitive wobbly X button getting in the way too much!

Any help, advice or tips would be greatly appreciated, thanks in advance!

[mutendo64]

you just wore out the rubber thing under the button.
you can find one the web pretty cheap