Dell Inspiron 15-3521 Wireless Card Replacement

Introduction

Often times, if one is experiencing consistently unreliable wireless connectivity and has tried to troubleshoot this problem using provided software solutions the hardware can be at fault for loss of connectivity. Furthermore, if one wants to upgrade one's wireless speed, a wireless card replacement is in order.

What you need

Step 1 Remove the Battery

Dell Inspiron 15-3521 Wireless Card Replacement, Remove the Battery: step 1, image 1 of 3

Dell Inspiron 15-3521 Wireless Card Replacement, Remove the Battery: step 1, image 2 of 3

Dell Inspiron 15-3521 Wireless Card Replacement, Remove the Battery: step 1, image 3 of 3

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

Edit

Step 2 Removing Keyboard

Dell Inspiron 15-3521 Wireless Card Replacement, Removing Keyboard: step 2, image 1 of 3

Dell Inspiron 15-3521 Wireless Card Replacement, Removing Keyboard: step 2, image 2 of 3

Dell Inspiron 15-3521 Wireless Card Replacement, Removing Keyboard: step 2, image 3 of 3

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.

Edit

Step 3 Disconnecting the Keyboard Cable

Dell Inspiron 15-3521 Wireless Card Replacement, Disconnecting the Keyboard Cable: step 3, image 1 of 3

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Dell Inspiron 15-3521 Wireless Card Replacement, Disconnecting the Keyboard Cable: step 3, image 3 of 3

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.