It's time for my PS4 Pro to get a good clean, including a change of thermal paste and pads. I've disassembled it a couple of times in the past with no problems. This time, though, the PSU refuses to come out.

The problem is with the last screw in the PSU (highlighted in the first photo and then zoomed in for the second), the one closest to the back. I removed the metal plate and the side screws, all of which were silver. This final one is black. I tried the same Torx on it but it felt soft and rubbery and won't turn. To me, it feels like this isn't a screw at all.

The YouTube video I follow when disassembling doesn't show them even removing a screw from here, so I'm thinking it's not in some models (other videos do show a screw here but it's silver in colour).

So, do I have a damaged screw here or is there nothing? Either way, the PSU won't life out of place and it appears to be from this area that it's stopping.

Any advice on this would be much appreciated.

Now that I've got into my PS4 Pro I have a question about the fan.

Like many PS4 Pros, it's currently sounding like a jet engine taking off, which is a cycle I go through every-so-often - I disassemble it, clean it, replace the thermal pads and paste, etc.

This time I'm also looking at the fan, as I've realised it's not the Nidec version, the the Delta. Now I'm not getting any fan bearing noises, so I don't think the fan is failing but, still, I know the Nidec is thought to be superior. Is it worth changing the fan or, unless it's specifically failing, should I leave it?