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Introduction

his guide will walk you through carefully removing and replacing the Wi-Fi card in your HP ProBook 640 G3. This repair is likely needed if your device is having trouble accessing the internet connection or cannot seem to connect at all. The process is rated as Moderate in difficulty, is in progress, and is estimated to take between 5 and 10 minutes to complete.

A critical safety caution before starting is to ensure the device is completely powered down and not connected to any charging sources; also make sure the laptop is not still hot if it was recently used. This guide requires the removal of the battery first, and the tools you will need include a Phillips #00 Screwdriver, Plastic prying tools, an Opening Pick, and Tweezers. To help with reassembly, it is a good idea to separate your screws into groups based on the device part they came from.

What you need

Step 1 Lower Case

HP ProBook 640 G3 Wi-Fi Card Replacement, Lower Case: step 1, image 1 of 3

HP ProBook 640 G3 Wi-Fi Card Replacement, Lower Case: step 1, image 2 of 3

HP ProBook 640 G3 Wi-Fi Card Replacement, Lower Case: step 1, image 3 of 3

Before beginning, power the device down and disconnect all peripheries.
Remove the eight 6 mm-long Phillips screws securing the lower case.
Insert an opening pick into the seam between the lower case and chassis.
Slide the pick around the entire perimeter of the device until the lower case releases.
Remove the lower case.

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Step 2 Battery

HP ProBook 640 G3 Wi-Fi Card Replacement, Battery: step 2, image 1 of 3

HP ProBook 640 G3 Wi-Fi Card Replacement, Battery: step 2, image 2 of 3

HP ProBook 640 G3 Wi-Fi Card Replacement, Battery: step 2, image 3 of 3

Use a Phillips screwdriver to loosen the seven 6 mm-long captive screws securing the battery.
These screws are built into the edges of the battery, so they only need to be loosened in order for the battery to be taken out.

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Step 3

HP ProBook 640 G3 Wi-Fi Card Replacement: step 3, image 3 of 3

Remove the battery.
If the battery will not come out, you may need to loosen the screws more; refer back to step 2.

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Step 4 Wi-Fi Card

HP ProBook 640 G3 Wi-Fi Card Replacement, Wi-Fi Card: step 4, image 1 of 1

Use a Phillips screwdriver to remove the two 6 mm-long screws on the metal piece holding down the Wi-Fi card. One screw will be on top, and the other will be just next to the wires holding it in.
Carefully remove the little metal piece from where it was resting.
The metal piece is small and non-magnetic. Leave in clear line of sight to avoid losing it.

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Step 5

The only thing holding the Wi-Fi card will be two small wires. These can easily be taken off by the use of your hands or helpful tweezers.
Gently remove the card by pulling it out of its slot.

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Conclusion

To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting or ask our Answers community for help.