Dell P99G Service Manual page 70

NOTE: For models shipped with a fingerprint reader or WWAN antennas, there are four (M2x3) screws securing the
system board to the computer.
3. Place the USB Type-C bracket [1] on the system board and secure it using two (M2x5) screws [2] to the system board.
4. Connect the touchpad cable to the connector on the system board [1].
5. Adhere the coin cell to the palmrest assembly [2].
70 Removing and installing components