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Repair guides and disassembly information for the 14-inch MacBook Pro released in October of 2021, featuring Apple-designed M1 Pro and M1 Max SoCs. Model A2442.

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Keyboard not working, but backlight + trackpad work fine

My MBP 14" (2021) has an issue where the keyboard is not responsive, except for the power button.

The backlight on the keyboard works fine and so does the trackpad. The keys are not responsive however.

Running diagnostics (using an external wired keyboard to boot in) shows no issues.

I have read that other people resolved this issue by replacing the trackpad cable, is this likely to work? Also, If I carry out this repair myself, will it be obvious to future Apple techs that a user did it, causing them to refuse future service?

I will take it to the Apple Store first but I am concerned they will charge a huge bill to replace half the laptop!

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This model uses independent cable connections for the keyboard and the trackpad. The older 13” model used a daisy chain setup which had a single cable from the logic board and then the keyboard was connected to the trackpad.

So in this case replacing the trackpad cable won’t alter the keyboard.

So why did the keyboard stop working? Did you have a spill or drop something onto the keyboard. Without knowing I would just be guessing.

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