Dell Precision 3480 How-To Install & Replace Your Power Button

By on May 30, 2025 · 5:18 pm
PrintEmail

In this Dell laptop tutorial we are going to show you how to install and replace the Power Button on your Precision 3480 laptop. These installation instructions have been made into 16 easy to follow printable steps. We have also created a video tutorial that shows you how to install your Precision 3480 Power Button.

Before you begin

Please take the time read the following safety guidelines when working on static sensitive electrical components.
Dell repair manual service precautions

Tools needed for this laptop repair

  • 1 x Phillips #0 screwdriver
  • 1 x small plastic scribe
Precision 3480 Power Button

Dell Laptop Replacement Parts Needed

DIY Discount - Parts-People.com offers 5% off to all DO-IT-YOURSELFERS!
Use this coupon code to save 5% off these parts
DIYM514
Precision 3480 Power Button

Video tutorial repair manual



Installation and Removal Instructions
Precision 3480 Power Button

Before you begin: If you need help at any point, you can always contact Parts-People Repair Department for help with your diagnosis or repair.

Step 1

TOOLS FOR THIS REPAIR: Phillips #0 and a

Step 2

TOOLS FOR THIS REPAIR: Phillips #0 and a Unscrew the Bottom Base Cover (8 X captive screws).Pry apart and remove the Bottom Base Cover.TOOLS FOR THIS REPAIR: Phillips #0 and a
Disconnect the Battery Cable.

Step 3

Disconnect the Battery Cable.Disconnect the Battery Cable.
Unscrew and remove the Battery (5 X captive screws).

Step 4

  • Unscrew and remove the Battery (5 X captive screws).
Unscrew and remove the Battery (5 X captive screws).Unscrew and remove the Battery (5 X captive screws).
Unscrew and remove the inner frame (8 x M2 x 3mm).

Step 5

  • Unscrew and remove the inner frame (8 x M2 x 3mm).
Unscrew and remove the inner frame (8 x M2 x 3mm).Unscrew and remove the inner frame (8 x M2 x 3mm).
Unscrew and remove the LCD cable bracket (2 x M2 x 3mm).

Step 6

  • Unscrew and remove the LCD cable bracket (2 x M2 x 3mm).
  • Disconnect the LCD cable.
  • IF YOUR DISPLAY HAS AN IR CABLE, THIS SHOULD BE DISCONNECTED ALSO.
Unscrew and remove the LCD cable bracket (2 x M2 x 3mm).Disconnect the LCD cable.IF YOUR DISPLAY HAS AN IR CABLE, THIS SHOULD BE DISCONNECTED ALSO.Unscrew and remove the LCD cable bracket (2 x M2 x 3mm).
Disconnect the cooling fan cable.

Step 7

  • Disconnect the cooling fan cable.
Disconnect the cooling fan cable.Disconnect the cooling fan cable.
Unscrew and remove the Cooling Fan (2 x

Step 8

Unscrew and remove the Cooling Fan (2 x Unscrew and remove the Cooling Fan (2 x
Unscrew and remove the SSD thermal bracket (2 x M2 x 3mm).

Step 9

Unscrew and remove the SSD thermal bracket (2 x M2 x 3mm).Slide out the M.2 NVMe SSD.Unscrew and remove the SSD thermal bracket (2 x M2 x 3mm).
Unscrew and remove the WiFi antenna bracket (1 x M2 x 3mm).

Step 10

  • Unscrew and remove the WiFi antenna bracket (1 x M2 x 3mm).
  • Disconnect the WiFi antennas.
Unscrew and remove the WiFi antenna bracket (1 x M2 x 3mm).Disconnect the WiFi antennas.Unscrew and remove the WiFi antenna bracket (1 x M2 x 3mm).Unscrew and remove the WiFi antenna bracket (1 x M2 x 3mm).
Disconnect the Speaker cable.

Step 11

  • Disconnect the Speaker cable.
Unclip the locking tab and then disconnect the touchpad cable.

Step 12

  • Unclip the locking tab and then disconnect the touchpad cable.
Unclip the locking tab and then disconnect the touchpad cable.Unclip the locking tab and then disconnect the touchpad cable.
Unscrew the Tyoe-C bracket (3 x M2 x 3mm).

Step 13

  • Unscrew the Tyoe-C bracket (3 x M2 x 3mm).
IF YOUR MODEL WAS SOLD WITH A FINGERPRINT READER:

Step 14

  • IF YOUR MODEL WAS SOLD WITH A FINGERPRINT READER:
  • Unscrew the fingerprint reader cable bracket (1 x M2 x 3mm).
  • Disconnect the fingerprint reader cable.
IF YOUR MODEL WAS SOLD WITH A FINGERPRINT READER:Unscrew the fingerprint reader cable bracket (1 x M2 x 3mm).
Unscrew and remove the Motherboard (3 x M2 x 4mm).

Step 15

  • Unscrew and remove the Motherboard (3 x M2 x 4mm).
  • The Heatsink can remain attached to the Motherboard for this repair.
Unscrew and remove the Motherboard (3 x M2 x 4mm).The Heatsink can remain attached to the Motherboard for this repair.
Unscrew and remove the Power Button (2 X 2mm x 2.5mm)

Step 16

  • Unscrew and remove the Power Button (2 X 2mm x 2.5mm)
  • ***FOLLOW THE ORIGINAL STEPS IN REVERSE TO REASSEMBLE YOUR LAPTOP.
Unscrew and remove the Power Button (2 X 2mm x 2.5mm)***FOLLOW THE ORIGINAL STEPS IN REVERSE TO REASSEMBLE YOUR LAPTOP.Unscrew and remove the Power Button (2 X 2mm x 2.5mm)
Precision 3480 Power Button

Dell Laptop Replacement Parts Needed

DIY Discount - Parts-People.com offers 5% off to all DO-IT-YOURSELFERS!
Use this coupon code to save 5% off these parts
DIYM514
Precision 3480 Power Button

Topics: Dell Precision Repair Manuals Dell Laptop Repair Dell Repair Manuals Power Button Precision 3480

Tags

Join the conversation!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.