Lenovo 21AD001KUS, User Manual

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5. Install the new base cover assembly in place 1 . Ensure that the latches of the base cover assembly are
secured under the base cover assembly 2 . Then, tighten the screws to secure the base cover assembly
3 .
6. Turn over the computer. Connect the ac power adapter and all disconnected cables to the computer.
Troubleshooting
If the computer does not start up after you reinstall the base cover assembly, disconnect the ac power
adapter and then reconnect it to the computer.
M.2 solid-state drive and bracket
Prerequisite
Before you start, read Appendix A “Important safety information” on page 57 and print the following
instructions.
Attention: If you replace a solid-state drive, you might need to install a new operating system. For details on
how to install a new operating system, see “Install a Windows operating system and drivers” on page 38.
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 apply pressure to the M.2 solid-state drive.
• Do not touch the contact edge or circuit board of the M.2 solid-state drive. Otherwise, the M.2 solid-state
drive might get damaged.
• 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.
Chapter 6
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CRU replacement
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