Dell Inspiron 15 3521 Wireless Card Replacement Repair Guide

Difficulty

Moderate

Steps

4

Time Required

                          15 - 30 minutes            

Sections

2

• Keyboard
• 3 steps
• Wireless Card
• 1 step

Flags

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Introduction

What you need

Step 1

              Remove the Battery               

• Flip the laptop over.
• Slide the latches toward the outside of the laptop to unlock the battery.
• Lift the battery out of the laptop.

Flip the laptop over.

Slide the latches toward the outside of the laptop to unlock the battery.

Lift the battery out of the laptop.

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Step 2

              Removing Keyboard               

• Flip laptop right side up
• Using a flat head screwdriver, depress locking tabs holding keyboard into place
• Using a spudger, pry the keyboard from the laptop, giving room to access with hands.
• Using hands, remove keyboard completely from laptop body, leaving only the connecting cord that attaches the keyboard to the laptop.

Flip laptop right side up

Using a flat head screwdriver, depress locking tabs holding keyboard into place

Using a spudger, pry the keyboard from the laptop, giving room to access with hands.

Using hands, remove keyboard completely from laptop body, leaving only the connecting cord that attaches the keyboard to the laptop.

Step 3

              Disconnecting the Keyboard Cable               

• To disconnect the keyboard, locate the keyboard cable locking mechanism.
• Open the locking mechanism by gently pulling up.
• Slide out the keyboard cable from the interface to separate the keyboard form the laptop.

To disconnect the keyboard, locate the keyboard cable locking mechanism.

Open the locking mechanism by gently pulling up.

Slide out the keyboard cable from the interface to separate the keyboard form the laptop.

Step 4

              Wireless Card Removal               

• Remove the wireless card cables powering the wireless card
• Unscrew the wireless card using a PH0 screwdriver.
• Replace with a new wireless card, reattaching the power cables.

Remove the wireless card cables powering the wireless card

Unscrew the wireless card using a PH0 screwdriver.

Replace with a new wireless card, reattaching the power cables.

To reassemble your device, follow these instructions in reverse order.

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                    Andrew Dippre                     

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                       Clemson, Team 3-1, Benson Fall 2014                        

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Student4Life - May 27, 2017

Reply

On an Insperion 15 model 3878, the Wi-Fi adapter wasn’t under the keyboard. It was under the inset cover on the bottom.

I reseated the card connection and then Windows could communicate to configure it.

rohit nair - Apr 21, 2021

Reply

its wlan is right now 2.4ghz. i want to upgrade it to 5ghz. please suggest a solution!