Dell Vostro 14 3430 Owner's Manual page 102

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