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Huawei Watch 3 Motherboard Replacement

简介

Use this guide to replace a damaged motherboard on your Huawei Watch 3.
The removal of the battery is optional and can be skipped (steps 13 and 14). Do not reinstall a damaged or deformed battery, as doing so is a potential safety hazard.

You may need replacement adhesive to reattach components when reassembling the device.

你所需要的

    • User your fingernail to pull the small metal pin on each wrist band towards the inside. This unlocks the wrist bands from the body of the watch.

    • Remove the wrist bands.

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  2. Huawei Watch 3 Motherboard Replacement, Remove the four Torx screws: 步骤 2 中的图像 1，1

    • Use a Torx T3 screwdriver to remove the four 4 mm-long screws on the back of the Huawei Watch 3.

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  3. Huawei Watch 3 Motherboard Replacement, Pry the back cover open: 步骤 3 中的图像 1，3 Huawei Watch 3 Motherboard Replacement, Pry the back cover open: 步骤 3 中的图像 2，3 Huawei Watch 3 Motherboard Replacement, Pry the back cover open: 步骤 3 中的图像 3，3

    • Locate the small notch at the top of the back cover.

    • Use a Jimmy to pry open the back cover by twisting it.

    • Using a sharp metal tool might cause cosmetic damage to the watch case. Covering the tool with a nitril glove can minimize the damage.

    • Don’t remove the back cover just yet. It is still connected to the motherboard with a flex cable.

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  4. Huawei Watch 3 Motherboard Replacement, Loosen the back cover gasket: 步骤 4 中的图像 1，2 Huawei Watch 3 Motherboard Replacement, Loosen the back cover gasket: 步骤 4 中的图像 2，2

    • Insert the tip of an opening pick between the back cover and the case.

    • Slide the opening pick around the back cover to loosen the gasket from the back cover.

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  5. Huawei Watch 3 Motherboard Replacement, Lift the back cover: 步骤 5 中的图像 1，3 Huawei Watch 3 Motherboard Replacement, Lift the back cover: 步骤 5 中的图像 2，3 Huawei Watch 3 Motherboard Replacement, Lift the back cover: 步骤 5 中的图像 3，3

    • There is a ribbon cable running from the back cover to the motherboard.

    • Use an opening pick or your fingers to carefully lift the back cover open.

    • Flip the back cover open away from the crown.

    • You can prop up the back cover to minimize the stress on the ribbon cable.

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  6. Huawei Watch 3 Motherboard Replacement, Remove the battery bracket screw: 步骤 6 中的图像 1，1

    • Use a Phillips screwdriver to remove the 2.9 mm-long screw from the battery bracket.

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  8. Huawei Watch 3 Motherboard Replacement, Remove the battery bracket: 步骤 7 中的图像 1，3 Huawei Watch 3 Motherboard Replacement, Remove the battery bracket: 步骤 7 中的图像 2，3 Huawei Watch 3 Motherboard Replacement, Remove the battery bracket: 步骤 7 中的图像 3，3

    • User a pair of tweezers to lift the top of the battery bracket free from its screw socket.

    • Unhook the opposite side of the bracket and remove it.

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  9. Huawei Watch 3 Motherboard Replacement, Unplug the battery connector: 步骤 8 中的图像 1，2 Huawei Watch 3 Motherboard Replacement, Unplug the battery connector: 步骤 8 中的图像 2，2

    • Use the tip of a spudger to pry up and disconnect the battery connector.

    • The battery connector is the smallest of the three connectors.

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  10. Huawei Watch 3 Motherboard Replacement, Remove the sensor bracket screw: 步骤 9 中的图像 1，1

    • Use a Phillips screwdriver to remove the 2.9 mm-long screw from the sensor bracket.

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  11. Huawei Watch 3 Motherboard Replacement, Remove the sensor bracket: 步骤 10 中的图像 1，3 Huawei Watch 3 Motherboard Replacement, Remove the sensor bracket: 步骤 10 中的图像 2，3 Huawei Watch 3 Motherboard Replacement, Remove the sensor bracket: 步骤 10 中的图像 3，3

    • User a pair of tweezers to move the top of the sensor bracket free from a small latch near the case by rotating in inwards.

    • Unhook the opposite side of the bracket and remove it.

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  12. Huawei Watch 3 Motherboard Replacement, Unplug the sensor connector: 步骤 11 中的图像 1，3 Huawei Watch 3 Motherboard Replacement, Unplug the sensor connector: 步骤 11 中的图像 2，3 Huawei Watch 3 Motherboard Replacement, Unplug the sensor connector: 步骤 11 中的图像 3，3

    • Use the tip of a spudger to pry up and disconnect the sensor connector.

    • Remove the back cover.

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  13. Huawei Watch 3 Motherboard Replacement, Disconnect the home button: 步骤 12 中的图像 1，2 Huawei Watch 3 Motherboard Replacement, Disconnect the home button: 步骤 12 中的图像 2，2

    • Use the tip of a spudger to disconnect the home button cable.

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  14. Huawei Watch 3 Motherboard Replacement, Lift the battery: 步骤 13 中的图像 1，3 Huawei Watch 3 Motherboard Replacement, Lift the battery: 步骤 13 中的图像 2，3 Huawei Watch 3 Motherboard Replacement, Lift the battery: 步骤 13 中的图像 3，3

    • Insert the tip of an opening pick between the battery and the plastic frame opposite to the cables.

    • Use the opening pick to lift the battery up.

    • The battery is held down by mild adhesive.

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  15. Huawei Watch 3 Motherboard Replacement, Remove the battery: 步骤 14 中的图像 1，2 Huawei Watch 3 Motherboard Replacement, Remove the battery: 步骤 14 中的图像 2，2

    • Grab the battery with your fingers and remove it.

    • For reassembly you may need to apply some adhesive to the new battery if it does not come equipped with it.

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  16. Huawei Watch 3 Motherboard Replacement, Disconnect the display cables: 步骤 15 中的图像 1，3 Huawei Watch 3 Motherboard Replacement, Disconnect the display cables: 步骤 15 中的图像 2，3 Huawei Watch 3 Motherboard Replacement, Disconnect the display cables: 步骤 15 中的图像 3，3

    • Use the tip of a spudger to pry up and disconnect both display cables.

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  17. Huawei Watch 3 Motherboard Replacement, Remove the four motherboard screws: 步骤 16 中的图像 1，1

    • Use a Phillips screwdriver to remove the four 2.9 mm-long screws securing the motherboard.

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  18. Huawei Watch 3 Motherboard Replacement, Remove the motherboard: 步骤 17 中的图像 1，2 Huawei Watch 3 Motherboard Replacement, Remove the motherboard: 步骤 17 中的图像 2，2

    • Grab the motherboard with your fingers and lift it out of the case.

    • If you opted not to remove the battery, use the flat end of a spudger to lift the motherboard out of the case.

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结论

To reassemble your device, follow these instructions in reverse order. Apply new adhesive where necessary after cleaning the relevant areas with isopropyl alcohol (>90%).

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.

作者

Tobias Isakeit

于03/31/14注册

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