you will need to buy some screwdrivers the realy small ones,should only cost a couple of pounds for a set,then take off the top of the console by removeing the rubber seal on the right side,unscrew the screwbehind the seal and remove the top cover,you should now see aload of screws with arrows pointing at them ,remove these,make sure u take out the disc before u do any of this,you should now see a black box thats the dlue ray drive unhock from any wires and remove the caseing ,u should now be able to clean the lens,cotton bud, now put it back together ,should work like new, o ye u might have to hoover the inside like i had to cause the ps3 sucks in dust .dont forget to u tube if ur not sure .
declan, February 2011