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Chapter 9. Replacing devices
This chapter contains the following items:
•
"Static electricity prevention" on page 107
•
"Disabling the built-in battery" on page 107
•
"Replacing the removable battery" on page 108
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"Installing or replacing the micro SIM card" on page 109
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"Replacing the base cover assembly" on page 111
•
"Replacing the internal storage drive" on page 113
•
"Replacing a memory module" on page 115
•
"Replacing an M.2 wireless WAN card" on page 116
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"Replacing the keyboard" on page 119
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"Replacing the coin-cell battery" on page 126
Static electricity prevention
Static electricity, although harmless to you, can seriously damage computer components and options.
Improper handling of static-sensitive parts can cause damage to the part. When you unpack an option or
a CRU, do not open the static-protective package that contains the part until the instructions direct you
to install the part.
When you handle options or CRUs, or perform any work inside the computer, take the following precautions
to avoid static-electricity damage:
• Limit your movement. Movement can cause static electricity to build up around you.
• Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the
edges. Never touch exposed circuitry.
• Prevent others from touching components.
• When you install a static-sensitive option or CRU, touch the static-protective package that contains the
part to a metal expansion-slot cover or other unpainted metal surface on the computer for at least two
seconds. This reduces static electricity in the package and your body.
• When possible, remove the static-sensitive part from the static-protective package and install the part
without setting it down. When this is not possible, place the static-protective package on a smooth,
level surface and place the part on the package.
• Do not place the part on the computer cover or other metal surface.
Disabling the built-in battery
Before replacing any FRU, ensure that you have disabled the built-in battery.
For Windows 10, disable Fast Startup before disabling the built-in battery.
To disable Fast Startup for Windows 10, do the following:
1. From the desktop, type Power in the search box on the taskbar, and select Power Options.
2. Click Change what the power buttons do on the left pane.
3. Click Change settings that are currently unavailable at the top.
© Copyright Lenovo 2015, 2016
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