HP EliteBook 850 G4 Maintenance And Service Manual page 75

3. Pull the plastic tab on the side of the card reader board to disengage the board (3), use a thin tool to pry
up the side of board (near touchpad) (4), and then pull the board away from the side of the computer to
remove it from the clips built into the computer (5).
Reverse this procedure to install the card reader board.
Component replacement procedures 63