Dell XPS 13 (9333, Late 2013) - Manual (Page 11)

Replacing the Base Cover | 11
Replacing the Base Cover
WARNING: Before working inside your computer, read the safety information
that shipped with your computer and follow the steps in "Before Working Inside
Your Computer" on page 7. After working inside your computer, follow the
instructions in "After Working Inside Your Computer" on page 9.
For more safety best practices, see the Regulatory Compliance home page at
dell.com/regulatory_compliance.
Procedure
1 Align the base cover with the palm-rest assembly and press the base cover
into place.
2 Using a Torx 5 screwdriver, replace the screws that secure the base cover to the
palm-rest assembly.