HP ProBook 6475b Notebook PC and HP ProBook 6470b Notebook PC Maintenance and Service Guide

9.
Remove the four Torx TM2.5×8.0 screws from the rear panel of the computer.
10.
Remove the wireless cables from the clips (1) and routing channel built into the base enclosure.
11.
Disconnect the speaker cable (2) from the system board.
Component replacement procedures
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