Lenovo ThinkPadP50, User Manual

Page: 133 / 180

Chapter 10. Replacing devices
This chapter contains the following items:
• “Static electricity prevention” on page 117
• “Installing or replacing the micro SIM card” on page 119
• “Replacing the removable battery ” on page 117
• “Replacing the bottom cover” on page 120
• “Replacing the hard disk drive” on page 121
• “Replacing the M.2 solid-state drive ” on page 123
• “Replacing the memory module under the bottom cover” on page 126
• “Replacing the coin-cell battery” on page 128
• “Replacing the keyboard” on page 129
• “Replacing an M.2 wireless-WAN card” on page 133
• “Replacing the memory module under the keyboard” on page 136
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
Customer Replaceable Unit (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.
Replacing the removable battery
Before you start, print these instructions. Read the important safety information first. See “Important
safety information” on page vi.
This system supports only batteries specially designed for this specific system and manufactured by Lenovo
or an authorized builder. The system does not support unauthorized batteries or batteries designed for other
systems. If an unauthorized battery or a battery designed for another system is installed, the system will
not charge.
© Copyright Lenovo 2015 117