Louis Rossmann has been covering this issue for *months*. If someone needs their Apple notebook fixed, get him to do it (or someone equally good), because so-called "authorised" shops generally haven't a clue what they're doing, and Apple highstreet stores have been lying to customers for years telling them things like this cannot be fixed, when they most certainly can.
I've been watching a lot of Louis' videos to learn SMC repair techniques. In the process of doing so, it's become very clear that much of what Apple produces is just junk in terms of design quality, manufacturing, circuit sophistication, etc., but the way they treat their customers is even worse. That people should be so loyal to a company which treats them so badly is bizarre.
https://youtu.be/VhFAVoQ9now?t=24s