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1.
Prepare the computer for disassembly
2.
Remove the bottom cover (see
3.
Disconnect the battery cable from the system board (see
Remove the WWAN module:
1.
Remove the Phillips M2.0 × 3.0 screw (1) that secures from the bracket on the WWAN module, and
then remove the bracket (2).
2.
Disconnect the antenna cables from the terminals (3) on the WWAN module.
3.
Remove the WWAN module by pulling the module away from the slot at an angle (4).
4.
If the WWAN antenna is not connected to the terminal on the WWAN module, a protective sleeve
must be installed on the antenna connector, as shown in the following illustration.
To install the WWAN module, reverse this procedure.
USB board
To remove the USB board, use these procedures and illustrations.
36
Chapter 5 Removal and replacement procedures for authorized service provider parts
(Preparation for disassembly on page
Bottom cover on page
28).
28).
Battery on page
29).
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