Chapter 10. Replacing Devices; Static Electricity Prevention; Disabling The Built-In Battery - Lenovo ThinkPad X1 Carbon User Manual

Chapter 10. Replacing devices

This chapter contains the following items:
• "Static electricity prevention" on page 119
• "Disabling the built-in battery" on page 119
• "Installing or replacing the micro SIM card" on page 120
• "Replacing the base cover" on page 120
• "Replacing the M.2 solid-state drive" on page 122
• "Installing or replacing the wireless-WAN card" on page 124

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

To disable the built-in battery, do the following:
1. Turn off your computer and disconnect the ac power adapter and all cables from the computer.
2. Restart the computer. When the Lenovo logo is displayed, press F1 to start the ThinkPad Setup program.
3. Go to Config ➙ Power ➙ Disable Built-in Battery.
4. Press Enter. A Setup Confirmation window is displayed.
5. Click Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off.
Wait for a few minutes to let the computer cool.
The built-in battery will be enabled automatically when the computer is connected to an ac power adapter.
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