Dell NOT22397 Owner's Manual page 103

Steps
1. Align and place the left hinge on the display assembly.
2. Install the three (M2.5x3.8) screws to secure the hinge to the display panel and back cover.
3. Align and place the right hinge on the display assembly.
4. Install the three (M2.5x3.8) screws to secure the hinge to the display panel and back cover.
Next steps
1. Install the display bezel.
102 Removing and installing Field Replaceable Units (FRUs)