MacBook Pro 16" Late 2023 Heat Sink Replacement

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Unfasten the heat sink

Turn the logic board upside-down so that the heat sink screws face upwards.
Use a 5IP Torx Plus driver to remove the four 3.9 mm screws securing the heat sink to the logic board.
Gently hold the screws as you remove them, as the tension brackets may eject them.
During reassembly, loosely tighten these screws, then align the brackets and heatsink before fully tightening them in an X-pattern.

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