
Ok ..
What I found was that …
Screwing the metal case that surrounds the blue ray drive to tight results in the mechanical parts that eject a disc cannot freely move ..
Simply screwing the screws back gently is ok .
I feared the hairpins could have scratched the lazer or
Damaged mechanics of the lenses but looks like I have got lucky ..
Ps2 backwards compatibility ps3 saved
As a bonus this fault must have occurred early on in its life as no dust at all inside the fans ..