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Released in November 2020, the 13" MacBook Pro features Apple's Arm-based M1 SoC with both an 8-core CPU and 8-core GPU. (Model A2338 / EMC 3578 with two Thunderbolt 3 ports)

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Keyboard and trackpad won't work after battery replacement

Completed a battery replacement and the battery now works but the trackpad and the keyboard don't. I can send pictures if necessary.

Thanks!

Edit: Here’s a picture of the MacBook, I’m happy to add any more if needed.

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I think you’ll need to post them here for us so see.

Creat an answer and within the answer tool bar you will see on the right an icon that looks like a mountain, click on It to open the file & image tool box. Click on adding and once you have it within the toolbox click on the image again to enter its tag within the Answer. Now save your work. You will be greeted with a dialog box asking it you want to update your question, click on that to Append it and then safe your question Done!

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@danj Alright, just added the picture. Thanks.

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Update: It turned out to be the trackpad cable! It didn’t look ripped or anything but replacing it made the keyboard and trackpad work again.

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@bananagranny - It looks like you damaged one of the battery connectors. Review step10 images in this guide MacBook Pro 13" Two Thunderbolt Ports Late 2020 Battery Replacement

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I was worried something bad would happen when I broke that. Didn't know that even the battery connector can mess up the trackpad/keyboard. Is there any way to fix it?

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@bananagranny - You’ll need to find someone to replace the connector. This is a tricky repair unless you have the correct tools and skills.

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@danj Would that mean soldering a new connector?

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@bananagranny - Yes, and access to the needed part.

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@danj Is it technically possible for me to use something to push down the pins so the keyboard and trackpad will be functional? Thank you for your help so far.

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Eli Dinh will be eternally grateful.
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