Dust in the display, what causes it, how to prevent it

Thanks. Actually the dust accumulates between led diffusor and LCD matrix, not between laminated glass and LCD so there is no need to debond anything. Either way it is not very easy to fix, official Apple service will not accept doing it, they do not fix anything they just replace the parts.

Most people notice it after 9 months or so, I understand that all systems age but this is too early for a defect of this kind.

Would you think it is possible to prevent it somehow by adding some DIY dust filters, or it is a waste of time?

@alfaholic filtering may help but it's not good for much beyond reducing the severity as it ages. Go for it but make sure it's removable and doesn't impede airflow - bearing in mind it won't completely stop it.

I'm guessing Apple doesn't do much about it because it isn't as critical of a defect compared to something like the 2011 GPU nightmare. It'll take a lawsuit most likely since it's not bad enough to kill the system.

In order to service the panel it does need to be debonded due to how they are assembled. Maybe you have some EU specific leverage against Apple about this? We're kind of screwed in the States - even CA. You may be able to argue it's understandable if it happens in 3-4 years but ~9 months is unacceptable. Look into European law for something related to flaws like this. Apple stops at 5 years in every state but CA here and I'm in a 5 year state - unless other states have mandatory extensions. It makes sense since 5 years is pretty dated but the slowdown of Moore's law makes it so you can use older equipment longer but also after 5 years if a major part breaks it's probably better to move to a new system or a newer used platform.

Thanks. If by debond you mean to remove the adhesive that holds the screen then yes, but for cleaning this dust particles there is only some tape and few screws, here is the complete procedure:

https://youtu.be/WE6Vm1yxkVM

It is not overly complicated, but it requires steady hands and some experience. Official Apple service will not do it, those nimble guys in Russia do this very well.

As for EU laws, well it might be possible but do I really need to go through all of this for my own money? (if it translates well in English)

@alfaholic If you don't have a warranty you may need to but you have it so it'll be out of reason to push the matter for free after it expires most likely. Most displays come apart from the front rather then the back - including previous gen Apple panels.

You have better consumer law protections there so that's why I'm thinking the best way is a warranty extension but if you don't you may need to push them into fixing it for free.

Apple doesn't do it due to the liability and labor cost. The TAB wiring is very fragile.

@alfaholic - You really can't pull the display panel cover glass away without damaging the parts.

The newer 2012 and onwards displays are well sealed for dust. I have yet to see one with real dust!

What I have seen is bugs which were caught inside during the assembly process. The most common issue is image persistence which is caused by a static image fatiguing the LCD crystals.