Notes:
• Wireless WAN ready model identifies that product has preinstalled wireless WAN antennas and allows a
user-installable wireless WAN module.
• Only wireless WAN model or wireless WAN ready model is allowed to install the optional Lenovo wireless
WAN module.
Attention: Do not touch the contact edge of the wireless WAN card. Otherwise, the wireless WAN card
might get damaged.
For access, do the following:
1. Disable the built-in battery. See “Disable the built-in battery” on page 32.
2. Turn off the computer and disconnect the computer from ac power and all connected cables.
3. Close the computer display and turn over the computer.
4. Remove the base cover assembly. See “Base cover assembly” on page 32.
Step 1. Remove the wireless WAN card as shown below.
Note: A Mylar film might cover the wireless WAN card. To access the wireless WAN card, peel off
the film first.
Step 2. Install the wireless WAN card in reverse order. When installing, ensure that you connect the orange
cable to the M connector, and the blue cable to the D/G connector.
Memory module
Follow the instructions to replace the memory module.
Before you start, read
Generic Safety and Compliance Notices and print the following instructions.
Attention: Do not touch the contact edge of the memory module. Otherwise, the memory module might get
damaged.
For access, do the following:
1. Disable the built-in battery. See “Disable the built-in battery” on page 32.
Chapter 6. CRU replacement 35
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