Dell Latitude E7440 WLAN Card Replacement

Akash Kedia et un autre contributeur

Dernière mise à jour le March 8, 2019

15 minutes

Facile

Tutoriel étudiant vedette

Introduction

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Before replacing your WLAN card, please refer to our Troubleshooting Guide. If your laptop is still not receiving a WiFi connection, but your other devices are, you will need to replace your WLAN card. Dell has made this process simple.

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Outils

Étape 1 Prepare the laptop

Dell Latitude E7440 WLAN Card Replacement, Prepare the laptop: étape 1, image 1 de 1

Power off your laptop before starting.
Flip the device over so that the vents on the bottom are facing away from you.

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Étape 2 Release the battery

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Dell Latitude E7440 WLAN Card Replacement, Release the battery: étape 2, image 2 de 3

Dell Latitude E7440 WLAN Card Replacement, Release the battery: étape 2, image 3 de 3

Place your finger on the latch located in the center of the laptop.
Slide the latch to the right, applying enough force to reveal a red indicator.
You will hear a soft click when the latch has been disengaged.

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Étape 3 Remove the battery

Dell Latitude E7440 WLAN Card Replacement, Remove the battery: étape 3, image 1 de 1

Lift the battery by the top, away from the laptop body.

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Étape 4 WLAN Card

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Dell Latitude E7440 WLAN Card Replacement, WLAN Card: étape 4, image 2 de 2

Remove two M2 x 3mm Phillips #0 screws from the base cover.

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Étape 5

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Slide the base cover down slightly and remove it to find the WLAN card.

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Étape 6

Dell Latitude E7440 WLAN Card Replacement: étape 6, image 3 de 3

Disconnect the white and black wires attached to the WLAN card by pulling them away from the card.
You can use the nylon spudger to disconnect a wire by placing it between the curved part of the wire and gently pulling.
When attaching the wires to the WLAN card, place the wire head directly above the connectors and apply pressure to the head to reconnect it.