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Some computers might come with an M.2 wireless-WAN card. To replace the wireless-WAN card, do
the following:
1. Disable the built-in battery. See “Disabling the built-in battery” on page 113.
2. Turn off the computer and disconnect the ac power adapter and all cables from the computer.
3. Close the computer display and turn the computer over.
4. Remove the removable battery. See “Replacing the removable battery” on page 115.
5. Loosen the screws that secure the base cover assembly
1
. Then remove the base cover assembly
2
.
6. If a tool is provided with the new card to help you disconnect cables, use the tool to disconnect the
cables from the old card. If no such a tool is provided, hold the cable connector with your fingers and
gently disconnect each cable from the old card.
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ThinkPad X260 User Guide
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