Introduction

This guide will show you how to replace the Wi-Fi card in a Lenovo ThinkPad T470 laptop.

A Wi-Fi card, also known as a WLAN card, enables the laptop to connect to a wireless network. If you cannot connect your laptop to Wi-Fi, or if you are experiencing intermittent connectivity, you may have a faulty Wi-Fi card. Be sure to rule out other connectivity issues listed here before replacing your Wi-Fi card.

Make sure to disable the internal battery, power down your device, and disconnect from any external power sources before you begin.

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    • Before you begin this guide, make sure to disable the internal battery, power down your device, and disconnect from any external power sources.

    • Place the laptop so that the bottom is facing upwards.

    • Slide the latch on the left side of the battery to the left until it clicks in place.

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    • Slide the latch on the right side of the battery to the right and hold it in place with your thumb.

    • Use your other hand to slide the battery towards the back of the laptop.

    • Lift the battery up and away from the laptop.

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    • Use a Phillips #1 screwdriver to loosen the six captive screws on the bottom cover of the laptop.

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    • Use your hands to pull up on the back cover and release the plastic clips starting on the bottom side of the battery compartment.

    • Potential for device damage: Be sure to detach the plastic clips in this area first. You risk cracking the bottom cover if you attempt to detach it from around the edges of the laptop first.

    • Use your hands to pull up on the right side of the bottom cover to release the plastic clips.

    • Use your hands to pull up on the left side of the bottom cover to release the plastic clips.

    There may be a SIM card holder inserted. If there is, it will prevent the bottom cover from coming off. In the photo, the SIM card holder would be center left edge of laptop. Use a straight pin or paperclip to eject the holder to release the laptop bottom cover.

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    • Remove the bottom cover from the laptop.

    Don't forget to unplug the battery from the motherboard before removing it.

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    • Use a finger to press the black flap covering the Wi-Fi card down.

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    • Use the flat end of a spudger to disconnect the two coaxial wires from the Wi-Fi card.

    • When reassembling, reattach the gray wire on the left and the black wire on the right.

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    • Use a Phillips #1 screwdriver to remove the single 4 mm screw from the Wi-Fi card.

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    • Use your fingers to lift the Wi-Fi card up and out of its slot.

    • This laptop does not include a WWAN card, but if yours does, follow the same procedure as Steps 6-9 to remove it.

Conclusion

To reassemble your device, follow these instructions 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.

Kristen Gismondi

Member since: 12/11/14

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