Introduction
Prerequisite-only guide to replace the trackpad cable in a 2019 MacBook Air.
Tools
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Carefully slide an opening pick under the trackpad cable to separate the adhesive securing it to the upper case.
 
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Use the flat end of a spudger to lift the small locking flap on the trackpad ZIF connector.
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Slide the trackpad cable straight out of its connector.
 
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Carefully slide an opening pick under the trackpad cable to separate the adhesive securing it to the battery.
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.