Post-requisites
1 Replace the system board.
2 Replace the power-adapter port.
3 Replace the coin-cell battery.
4 Replace the solid-state drive/Intel Optane.
5 Replace the I/O board.
6 Follow the procedure from step 2 to step 7 in Replacing the heat sink.
7 Replace the wireless card.
8 Follow the procedure from step 4 to step 6 in Replacing the hard drive.
9 Replace the battery (half-length) or the battery (full-length), whichever applicable.
10 Replace the base cover.
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