MacBook Pro A1989 trackpad and keyboard not working

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  • biosdi
    New Member
    • Apr 2025
    • 4
    • Italy
    #1

    MacBook Pro A1989 trackpad and keyboard not working

    Hi guys.
    I Just replaced battery on my MacBook Pro A1989. Unfortunately doing that, I’ve broken the trackpad flex cable (821-01701-a), and I’ve already ordered a spare one. At the same moment I’ve noticed that also the keyboard it’s not working anymore and I’ve found an SMD chip unsoldered and moving freely inside the backplate. I can read L20L on the chip. Is something could explain the keyboard not working or the keyboard doesn’t work due the unconnected trackpad?

    Click image for larger version Name: IMG_5216.jpg Views: 439 Size: 852.3 KB ID: 3617376 Click image for larger version Name: IMG_5217.jpg Views: 34 Size: 826.5 KB ID: 3617377


    thanks
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