3. Remove the bottom cover.
4. Install the bottom cover.
5. Turn over the computer so that the bottom cover is facing down.
6. Reinstall all removed parts.
M.2 solid-state drive
Prerequisite
Before you start, read Appendix B "Important safety information" on page 69 and print the following
instructions.
Attention: The M.2 solid-state drive is sensitive. Inappropriate handling might cause damage and
permanent loss of data. When handling the M.2 solid-state drive, observe the following guidelines:
• Replace the M.2 solid-state drive only for upgrade or repair. The M.2 solid-state drive is not designed for
frequent changes or replacement.
• Before replacing the M.2 solid-state drive, make a backup copy of all the data that you want to keep.
• Do not touch the contact edge of the M.2 solid-state drive. Otherwise, the M.2 solid-state drive might get
damaged.
• Do not apply pressure to the M.2 solid-state drive.
• Do not make the M.2 solid-state drive subject to physical shocks or vibration. Put the M.2 solid-state drive
on a soft material, such as cloth, to absorb physical shocks.
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