Lenovo ThinkPad P52s User Manual page 131

9. Remove the screws that secure the protective cover 1 and then remove the cover 2 .
10. Remove the screw that secures the M.2 solid-state-drive. The M.2 solid-state drive is released from the
secured position and pivots upward.
11. Carefully remove the M.2 solid-state drive out of the M.2 slot..
To install the M.2 solid-state drive, do the following:
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Chapter 9 Replacing devices