Dell XPS 13 (9343, Early 2015) - Manual (Page 42)

Removing the I/O-Board Cable
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 dell.com/regulatory_compliance.
Prerequisites
1 Remove the base cover .
2 Remove the battery .
Procedure
1 Lift the latches and disconnect the I/O-board cable from the system
board and the I/O board.
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