HP 687099-B31 用户手册
Remove the display hinge covers:
1.
Remove the 1 Phillips PM screws that secures the display the left and right hinge covers (1), and
then remove the hinge covers (2).
then remove the hinge covers (2).
2.
Remove the 4 Phillips PM screws (2 on each side) that secure the hinge to the display panel (1),
and then remove the hinges (2).
and then remove the hinges (2).
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Chapter 4 Removal and replacement procedures