Dell XPS 15 9570 XPS 15 Service Manual - Page 60

36 Replacing the fingerprint reader daughter board (optional) 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. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure 1 Align and place the power-button module and fingerprint-reader board (optional) on the palm-rest assembly. 2 Replace the two screws (M1.6x3) that secure the power-button module to the palm-rest assembly. 3 Replace the screw (M1.6x1.5) that secures the fingerprint-reader board (optional) to the palm-rest assembly. 4 Adhere the tape that secures the power-button module to the palm-rest assembly. 5 Adhere the fingerprint reader daughter-board cable (optional) to the palm-rest assembly. Post-requisites NOTE: The fingerprint reader is available depending on the configuration ordered. 1 Replace the system-board assembly. 2 Replace the fans. 3 Replace the heat sink. 4 Replace the wireless card. 5 Replace the solid-state drive (half-length) or the solid-state drive (full-length). 6 Follow the procedure from step 3 to step 6 in "Replacing the hard drive". 7 Replace the memory modules. 8 Replace the battery (half-length) or the battery (full-length). 9 Replace the base cover. 60 Replacing the fingerprint reader daughter board (optional)