Dell Latitude 9510 Service Manual page 31

Steps
1. Disconnect the I/O daughter board data cable, fingerprint reader cable, and LED board cable from the I/O board.
2. Remove the four (M1.6x3.5) screws and lift the I/O board out of the laptop.
Installing the I/O board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the I/O board and provides a visual representation of the installation procedure.
Removing and Installing Components 31