The optical drive is locked and most likely encrypted so people can't replace it. I don't think you could even replace them or remarry them on the ps4 like you could with the ps3, but there is nothing we can do but wait and see if any methods become avaliable to unlock

Yes. The ps4 works the same as

Not a permanent fix for sure. This is still made under the assumption that solder is the issue, when its not.

Please don’t do this to your 360… all you will do is damage it beyond repair bu trying to fix “broken solder joints” that aren’t even there… the issue lies in the flip chip itself, not the solder under the substrate.

This is no doubt the most BS solution out there. Ifixit essentially trying to scam people out of their money by selling them a bunch of things that won’t repair their ps3s. All this does is heat up the faulty flip chip enough that it will work for a short time.

I am pretty sure its hdmi 2.1

What? Are you talking about the videos of people blowing water vapor into their consoles to make them look like they are smoking?

It wouldn’t help unless its pulling fresh air from somewhere. But 5 inches in the back should be perfectly fine.