Learn how to replace the USB board for the HP ProBook 640 G5 and G4 Notebook PC. For other helpful videos go to or More support options for your HP device are available at
Before you begin: Remove the base enclosure, battery, wireless WAN module, wireless LAN module, solid state drive, hard disk drive assembly, keyboard, and bottom frame.
Removal
Grasp the top cover near the display panel hinges and open the notebook so that you have access to the cables in the keyboard bay on the top cover.
Using minimal force, lift the locking bar up on the USB board ZIF connector and disconnect the USB board ribbon cable from the system board.
Grasp the top cover near the display panel hinges and close the notebook.
Remove the 3 mm P1 Phillips-head screw that secures the USB board to the top cover.
Carefully lift the left edge of the USB board off of the alignment pins and slide the connector out of the cut out in the top cover.
Remove the USB board ribbon cable from the cut out in the top cover and remove the USB board.
Reverse this procedure to install the USB board.
Caution: Improperly installing or replacing parts could damage your HP device or void your warranty. Before replacing any parts, check your warranty.
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