Introduction

Use this guide to replace a broken or non‑responsive touchpad (aka trackpad) on your HP EliteBook 840 G7 laptop.

You may need to replace the touchpad if it's behaving erratically, unresponsive to touch inputs, or inconsistent in cursor movement.

When handling batteries, don’t use sharp or metal tools, and don’t bend them or use excessive force. If your battery is swollen, take appropriate precautions.

Still under warranty? Contact HP to learn your warranty status, receive a repair under warranty if eligible, or for further warranty information.

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    • Before starting your repair, allow your laptop's battery to drain below 25%—a charged lithium-ion battery is a potential safety hazard if accidentally damaged.

    • Save your work, fully shut down your laptop, and unplug all cables.

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    • Despite the standards, Phillips screwdrivers can vary in size and shape—two drivers labeled as the same size may fit differently in the same screw. Use the size that fits the most snug into the screw head to avoid stripping it.

    • Use a Phillips screwdriver to fully loosen (but not remove) the five captive screws securing the bottom cover.

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    • Position your laptop so the rear edge (with the screen hinge) is closest to you.

    • Insert the flat end of a spudger between the rear edge of the bottom cover and the frame, near the middle screw and ELITEBOOK text.

    • If you're having trouble inserting your spudger, make sure the screw is fully loosened. If necessary, use your fingers to gently pull the screw up.

    • Use your spudger to pry up the cover to release the clip securing it.

    • Leave the spudger inserted under the bottom cover for the next step.

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    • Slide your spudger along the rear edge toward one of the corners to release the rear edge clips.

    • Rotate your spudger around the corner and up the edge to release the clips securing the short edge of the cover.

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    • Reinsert the flat end of a spudger near the ELITEBOOK text.

    • Repeat the previous step for the other side of the cover to release the remaining clips.

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    • Lift and remove the bottom cover.

    • The cover should lift away easily. If you feel resistance, use the flat end of a spudger to release any remaining clips, and check that all screws are fully loosened.

    • During reassembly, slide the clips along the front edge of the cover (opposite the hinge) into their slots on the frame, then lay the cover down. Press firmly around the perimeter to engage all of the clips.

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    • Position your laptop so the front edge (opposite the screen hinges) is closest to you.

    • Use the point of a spudger or your fingernail to push on alternating sides of the battery's sliding connector to walk it completely out of its socket.

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    • Use a Phillips screwdriver to remove the four 4.5 mm‑long screws securing the battery.

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    • Lift the top edge of the battery and slide the tabs on the bottom edge out of their slots.

    • Remove the battery.

    • Never reuse a deformed or damaged battery—it's a fire hazard. Replace it with a new battery.

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    • Light adhesive secures the four cables on the right side of the touchpad. Heating the cables will soften the adhesive, making it easier to separate.

    • Heat an iOpener and lay it on the four cables near the right of the touchpad for one minute.

    • Alternatively, you can use a hair dryer to lightly heat the cables.

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    • Use your fingers to gently peel up the far right white cable.

    • If you're having trouble, slide an opening pick under the cable to separate the adhesive.

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    • Use a spudger to lift the hinged locking flap on the middle ZIF connector on the right of the touchpad.

    • Gently slide an opening pick under the middle cable (close to the connector) to separate its adhesive.

    • If you're having trouble, re‑heat the cable to soften the adhesive.

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    • Use tweezers to gently pull the cable straight out of its socket.

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    • Use a spudger to lift the hinged locking flap on the left ZIF connector.

    • Use tweezers to gently pull the cable straight out of its socket.

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    • Use a spudger to lift the hinged locking flap on the right ZIF connector.

    • Use tweezers to gently pull the cable straight out of its socket.

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    • Use your fingers to gently peel up the white cable from the top edge of the touchpad.

    • If you're having trouble, re‑heat the cable or slide an opening pick under it to separate the adhesive.

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    • Use your fingers or a spudger to lift the entire speaker cable out of its clips on the bottom edge.

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    • Use a Phillips screwdriver to remove the five 2.2 mm‑long screws securing the touchpad.

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    • Use a spudger to lift the bottom edge of the touchpad until you can grip it with your fingers.

    • Grip the bottom corners of the touchpad with your fingers and slide the top edge out from under the motherboard.

    • Slide the touchpad under the speaker cable and remove it.

    • During reassembly, hold the four cables out of the way when inserting the touchpad so none of them get stuck underneath.

Conclusion

Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before you install it.

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

Take your e-waste to an R2 or e-Stewards certified recycler. Depending on your region, used HP devices and parts can be returned for reuse or recycling through the HP Planet Partners program.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

Spencer Day

Member since: 14/09/22

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