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Dell Latitude 7420 Keyboard Replacement/Teardown

Editing Step 14 —

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start on the right side at the USB C daughter board.

lift up the motherboard where the fan used to be

you should be able disconnect the daughterboard and mother board

the USB C port on the left might be tight. Use your fingers to slightly bend the laptop casing outward to the left above the usb c port

lift out the motherboard vertically

lift out USB C daughter board vertically. use the frame bending trick if necessary

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