I successfully replaced batteries in two 2012/2013 MBP retinas this week, thanks to this guide! A few things that I noticed are worth mentioning.
First, the screws on the speaker diagrams seem to be mislabeled. The screw closest to the touchpad was clearly the shortest of the three, and the other two were the same length (although one is silver and one is black).
On three of the four speakers I removed, the plastic bracket nearest the touchpad disintegrated, so I stuck some adhesive backed neoprene on the back of the speaker to hold it firmly against the back plate and prevent vibration.
It makes much more sense to remove the SSD tray immediately after disconnecting the SSD. Even though I read through the guide before starting, I did not realize this until I got to step 22.
I also did not find it particularly useful to bend cables in order to move components out of the way, so I skipped this on the second replacement that I did and just held components back slightly when necessary.
Sobald er das hat, wird er in der Lage sein, eine Grafik zu seiner im Laufe der Zeit erlangten Reputation zu sehen.
Hier ist eine Vorschau, wie die Grafik aussehen wird:
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