2015 MBP 15" Logic Board connectors are slightly different why?

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Itsmeapple @itsmeapple

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投稿日: 2025年1月18日

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2015 MBP 15" Logic Board connectors are slightly different why?

Hello all,

I received a donor logic board from my frieds Mid 2015 15" MBP. Both boards are (IG) compatible. After removing the old board, I replaced it with the donor board, and everything fits perfectly. However, there is a small issue with the trackpad connector and the card reader board flex cable connector.

Old board Trackpad connector is small and the Card reader connector is big

Old board Trackpad connector is Big and the Card reader connector is small

Both configuration are identical. i7 | 2.2Ghz | 16GB | Intel irish pro graphic

I'm really confused right now, and I need to figure this out. Hoping for some help.

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@itsmeapple can you give us the 820-xxxx numbers on your boards? Let's see what we got going on here.

oldturkey03 さんによる2025年1月18日

@oldturkey03 Hi, 820-00138-A this is the donor board number. my original board has a slightly different number 820-3662-A

Thank you

Itsmeapple さんによる2025年1月18日

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oldturkey03 @oldturkey03

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@itsmeapple logic board number for 820-3662-A relates to a MacBook Pro 15" A1398 Late 2013/2014. Logic board number 820-00138-A for a MacBook Pro 15" A1398 2015 (IG) I just verified with the schematics that these connectors are different. Unless you replace the trackpad etc. as well, you can't connect those components to your replacement board.

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Hello @oldturkey03

Thank you so much for your reply. What's strange is that my old board is showing that it’s a Mid 2015 15" MBP."

Please check the About This Mac. https://ibb.co/SQ29pnc

This is really confusing to me.

Itsmeapple さんによる2025年1月19日

@itsmeapple I totally understand your confusion and I am with you on that. All I can say is that I exclusively go by the logic board numbers and compare the connectors, schematic or whatever the current issue maybe. In the case of your boards, the connectors are definitely different.

oldturkey03 さんによる2025年1月19日

Thank you for understanding :) @oldturkey03 So what if i get the 2015 Trackpad and swap it? will it sit correctly and function?

U have mentioned this above but i just want to make sure if this is possible?

Thank you so very much.

Itsmeapple さんによる2025年1月19日

@itsmeapple I never had to interchange those parts so I really can't answer this. I wonder if @livfe has done a switch like this.

oldturkey03 さんによる2025年1月19日

That's alright i understand. let's hope someone will clarify this for us. :)

Appreciate your support @oldturkey03

Itsmeapple さんによる2025年1月19日

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@itsmeapple can you give us the 820-xxxx numbers on your boards? Let's see what we got going on here. — oldturkey03
@oldturkey03 Hi, 820-00138-A this is the donor board number. my original board has a slightly different number 820-3662-A

Thank you — Itsmeapple
Hello @oldturkey03

Thank you so much for your reply. What's strange is that my old board is showing that it’s a Mid 2015 15" MBP."

Please check the About This Mac. https://ibb.co/SQ29pnc

This is really confusing to me. — Itsmeapple
@itsmeapple I totally understand your confusion and I am with you on that. All I can say is that I exclusively go by the logic board numbers and compare the connectors, schematic or whatever the current issue maybe. In the case of your boards, the connectors are definitely different. — oldturkey03
Thank you for understanding :) @oldturkey03 So what if i get the 2015 Trackpad and swap it? will it sit correctly and function?

U have mentioned this above but i just want to make sure if this is possible?

Thank you so very much. — Itsmeapple
@itsmeapple I never had to interchange those parts so I really can't answer this. I wonder if @livfe has done a switch like this. — oldturkey03
That's alright i understand. let's hope someone will clarify this for us. :)

Appreciate your support @oldturkey03 — Itsmeapple

MacBook Pro 15インチ Retinaディスプレイ

2015 MBP 15" Logic Board connectors are slightly different why?

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