HP ProBook 4520s Maintenance And Service Manual page 89

5. Disconnect and remove the WLAN wireless antenna cables (4) from the tape, clips, and routing
channels built into the top cover.
Remove the display assembly:
CAUTION: Support the display assembly when removing the following screws. Failure to support the
display assembly can result in damage to the display assembly and other computer components.
1. Remove the six Torx M2.5×6.0 screws (1) that secure the display assembly to the computer.
Component replacement procedures
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