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Before removing the modem module, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet,
and then unplugging the AC adapter from the computer.
4.
Remove the following components:
a.
Remove the battery (see
Battery on page 43)
b.
Remove the service access cover (see
Service access cover on page 44)
c.
Remove the WLAN module (see
WLAN module on page 50)
d.
Remove the WWAN module (see
WWAN module on page 53)
e.
Remove the keyboard (see
Keyboard on page 55)
f.
Remove the top cover (see
Top cover on page 60)
g.
Remove the display assembly (see
Display assembly on page 66)
h.
Remove the system board shield (see
System board shield on page 69)
Remove the modem module:
1.
Turn the computer right-side up, with the front toward you.
2.
Disconnect the modem module (1) from the system board by lifting it straight up.
3.
Disconnect the modem module cable (2) from the modem module, and then remove the module
from the computer.
Reverse this procedure to install the modem module.
Component replacement procedures
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