Chapter 6. Replacing devices
This chapter contains the following items:
•
“Static electricity prevention” on page 73
•
“Disabling the built-in battery” on page 73
•
“Installing or replacing the SIM card” on page 74
•
“Replacing the battery pack” on page 75
•
“Replacing the hard disk drive or solid-state drive” on page 77
•
“Replacing a memory module” on page 81
•
“Replacing an M.2 wireless-LAN card” on page 83
•
“Replacing an M.2 wireless-WAN card” on page 87
Static electricity prevention
Static electricity, although harmless to you, can seriously damage computer components and options.
Improper handling of static-sensitive parts can damage 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 devices, ensure that you have disabled the built-in battery by doing the following:
1. Disconnect the ac power adapter and all cables from the computer.
2. Restart the computer. Press F1 to enter ThinkPad Setup when the ThinkPad logo appears.
3. Select
Config
➙
Power
. The submenu is displayed.
4. Select
Disable Built-in Battery
.
5. Click
Yes
in the Setup Warning window. Then the computer turns off and the built-in battery is disabled.
Wait for a few minutes to let the computer cool.
The built-in battery will be automatically enabled again when the ac power adapter is reconnected to the
computer.
© Copyright Lenovo 2013, 2014
73
Summary of Contents for ThinkPad X240
Page 1: ...User Guide ThinkPad X240 ...
Page 6: ...iv User Guide ...
Page 58: ...42 User Guide ...
Page 66: ...50 User Guide ...
Page 78: ...62 User Guide ...
Page 88: ...72 User Guide ...
Page 134: ...118 User Guide ...
Page 140: ...124 User Guide ...
Page 156: ...140 User Guide ...
Page 160: ...144 User Guide ...
Page 166: ...150 User Guide ...
Page 170: ...154 User Guide ...
Page 172: ...China RoHS 156 User Guide ...
Page 174: ...158 User Guide ...
Page 179: ......
Page 180: ......
Page 181: ......