Dell Inspiron 15 (3531, Mid 2014) - Manual (Page 31)

Replacing the Keyboard
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.
Procedure
1 Slide the keyboard cable into the system-board connector and press
down on the connector latch to secure the cable.
2 Carefully turn the keyboard over, slide the tabs on the keyboard into the
slots on the palm rest, and snap the keyboard into place.
3 Close the display and turn the computer over.
Post-requisites
Replace the battery .
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