Yes, there are two battery cables running under the logic board, clearly visible at step 68. No way to put the battery back with the logic board in place.
I recently did the 15” 2017 Macbook Pro battery replacement and that seemed more difficult than this one due to the speaker connectors. In my opinion, this 16” replacement can be marked as Moderate.
Absolutely correct. No way to skip the steps.
I can confirm that the logic board removal is mandatory, because two battery connection cords are under the logic board and cannot be removed otherwise. Even if that would be possible by cutting them, it is not possible to install the new battery anyway.
After doing a SMC reset and performing the battery recalibration as instructed by the guide (charge to 100% and keep it charging for more than 2h, run it to a full discharge and then recharge), the faulty battery service message is gone and my MacOS reports the battery in good condition.
As said above, the battery is pretty old, even if new. After the recalibration (2 cycles now on the battery), the full charge it can hold (as reported by coconutBattery) is 6139 mAh, approx 8% below the design capacity of 6669 mAh it reports. Definitely not above 6300 mAh as specified in the description of the battery in the online shop.
Let’s see if this degrades rapidly or remains in these parameters.
The previous battery replacement I bought from iFixit was for my Late 2013 Macbook Pro 15” and it behaved in a similar way, dropped after the recalibration from design capacity 8755 mAh (nice capacity compared to 2017 Macbook) to 8130 mAh max capacity, and it remained there for more than a year.
When putting it back, be careful, there might be a little piece of transparent adhesive foil on top of the socket, gently lift it up on the side of the cable. The cable should slide in easily, but do not force it. About 0.5mm of the cable contacts will be VISIBLE on the left side, when the cable is fully it, do not force it more than that.
The front screws are at a slight angle, pay attention when putting them back!
Position the battery first with the back covers on it, to feel how it would fit in place (the battery logic board position is a good reference, and the relative distance to the two speakers). Only when you get a good feeling of the position, remove the adhesive covers and put it in place. SLOWLY, there are not many chances to pull it up again if you do it wrong!!
The alu foil and the paint tape make it much safer, use them!
Start from the right, position it down in place and make sure the cables are not under the board, then get the antenna cables from beneath with tweezers, then work to the left, paying attention to get the cables away so the board can go down in place.
Absolutely DO NOT lift the board by the cables as the picture might lead you to think!
Also, when lifting up the board, if you feel any resistence, make sure that:
- all the screws were removed!!
- move cables and connectors gently away in the area where you are lifting, they can easily catch the logic board and it feels immediately resisting the lift
After lifting the left side to be able to keep it between your fingers, work toward the middle and then the right, moving the connectors and cables away to free the board for lifting.
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