Dell Inspiron 15 (3531, Mid 2014) - Manual (Page 14)

Removing the Base Cover
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
Remove the battery .
Procedure
1 Loosen the captive screws that secure the base cover to the computer
base.
2 Using your fingertips, pry the base cover from the computer base.
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