Dethac

There's a company in Baltimore called BPAI you should be able to google their number. They have had spare parts for everything I've ever tried to fix.

They need it repaired for future LTT videos.

Nice video: My suggestion is to basically bully them: Get MKBHD, Austin, etc. To make noise about them and shame them into doing something. I mean the multiple millions of views this video should get (And I actually do encourage people to like and share the video this time) should be just the first taste but it should be scorched earth on them.

@GabenJr @LinusSebastian well I dont know if that might help in any way. But what about going "to the press" with this to get some force on apple. If it gets published that even apple isnt able to repair their own products maybe that will get some peoples attention?! Make some Shitstorm where you can, I know apple isnt in social media but maybe that will help somehow. Write official complaints about this to their complaints mail, open multiple cases on apple support, write to their press department, whatever. 

Greets
 

Hope you guys get this worked out. This is part of why there isn't a single Apple device in my home.

@GabenJr 
 
Unfortunately I don't have any contacts that could help but I suggest you note down the part numbers of the components needed and contact the manufactures explaining the situation and kindly asking for replacements, this will take a long time but I think this is the only way you are going to do a DIY repair on it.

@GabenJr   @LinusTech I work for Parliament here in the UK (as a researcher for a Member), and I believe we have some relations with the exec team/public affairs team at Apple. Could write to them using my position in Parliament to see what they can do. It usually works. 
 
I am happy to provide proof I work for em (have my official email and other bits of ID) - if a mod or yourselves want to check this. 

I’m assuming that you’ve already got the model number off the back and contacted Chinese to see if they could find the part correct?

Apparently it's ever so slightly different...

Take the internals out, make a new enclosure for them, and mount them to the back of a regular monitor.

Hey guys, so the video is up and we're turning to you. Apple can't help us, AASPs aren't really getting the parts, either - What can we do? Let us know!

I don't think throttling the device is a bad thing on its own. Hell, a few other OEMs (I believe) have it as an option. Samsung, for example, has different power saving modes that limit (or throttle) the CPU. That's fine. 
What isn't is a few things: The lack of transparency on this issue from Apple (bad), the hardlining of the devices or the poor design of the battery (slightly less bad but still very bad), and the fact that a lot of people probably bought new iPhones to try and get a faster phone (really bad). 
 
The lack of transparency on Apple's part is a significant flaw that makes Apple's justifications just a tiny bit harder to believe. No notification is given to the user that the battery can't deliver the power necessary for the system. Instead, the processor is throttled silently without the user's knowledge. Apple already gives a notification when the battery reaches a level that Apple deems to be too poor to continue using: 80%. Evidently, Apple's phones can't degrade that far before facing performance issues, and since APPLE THEMSELVES are creating the notification, what harm is there in adding a second one when throttling becomes necessary to keep the phone operating as it should? Apple isn't telling its users that there's an issue with their device when there is, and that's really bad. 
 
The design is also pretty sketchy. The battery isn't at 80% capacity yet, and if we assume it hits 80% after 2 years of pretty constant usage, then after 1 year it should be around 90% give or take. How is it that Apple's battery design can't power the system effectively with a 10% decrease in battery capacity?
 
The battery in the iPhone is too small to deliver the amount of power necessary, or, if it is an issue with the current being delivered, the wiring of the battery is poor and... basically, the iPhone's battery is built right to the edge of what's necessary to save either weight (hence size) or cost. If we look at the size of the battery, this doesn't seem unreasonable. The iPhone 6 has an 1810 mAh battery, while the S6 has a 2550 mAh battery. Apple's power efficiency improvements in iOS work well with a smaller battery because black box magic, but longevity is clearly affected because the size of the battery has such a narrow margin of acceptable decay that after a year and at most 10% loss of battery capacity, the processor has to be throttled. What? How can this be fixed? Easy. Have a larger battery. Even if you lock the battery to only charge between certain values (say 10% and 90%, which of course shows up as 0% and 100% to the user), this results in a much larger margin for which the battery can degrade without it impacting performance. If you charge it normally with that extra capacity, the same effect. It gives more "breathing room" for the system to draw from the battery, which means that the battery can degrade more without impacting performance. 
 
Third, as a culmination of the previous points, what happens to MOST PEOPLE when their technology starts slowing down? They sure as hell aren't going to try to troubleshoot; that's for nerds and geeks and techies (/s). Instead, they're probably going to go buy a new phone because, hey, their phone is slowing down so technology is clearly getting too much for them. Sure, the battery replacement is given as an option, but Apple doesn't inform you until your battery reaches 80%, and at that point you've suffered through a throttled processor for quite some time already. Anecdotally, when I tried to replace my battery at an Apple store when it was at about 90% a few days back when this first hit Reddit (I benchmarked, yay! This was my second iPhone 6. My first had been replaced a while back for connectivity issues and the battery dying at 27% randomly), I got turned straight around by the Apple store employees. Inconclusive, but it shows that simply bringing it in to a store isn't going to fix all your issues. The issue here is that Apple doesn't inform you that there's a defect in their product and that they built their phones (and especially their batteries) too close to the limit until its far too late. 
 
So what does that mean for the consumer? Nothing good, that's for sure. It's not conclusive, but we can say that Apple is building their devices far too close to the THIS IS VERY BAD line and that after as little as a year preventative measures are necessary to insure the device continues operating, albeit slower than at purchase. This on its own isn't that bad. However, the lack of communication with customers and the hiding of the fact that the hardware can't keep up with the demands of the system makes this whole shebang suspicious.