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LG G3 Motherboard Cover Assembly Replacement

Introduction

Use this guide to remove or replace the motherboard cover assembly in the LG G3 (D855).

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  1. LG G3 Motherboard Cover Assembly Replacement, Back Cover: étape 1, image 1 de 2 LG G3 Motherboard Cover Assembly Replacement, Back Cover: étape 1, image 2 de 2

    • Power off your phone before beginning disassembly.

    • Insert a thumbnail, or a prying tool like a spudger, into the notch at the bottom left of the back cover.

    • Pry the back cover up to separate its plastic clips.

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  2. LG G3 Motherboard Cover Assembly Replacement: étape 2, image 1 de 2 LG G3 Motherboard Cover Assembly Replacement: étape 2, image 2 de 2

    • Lift the back cover to release the rest of the plastic clips and remove it.

    • In case you can't lift the back cover completely, slide your fingernail or your prying tool around the midframe to release the remaining clips.

    • To reinstall the back cover, press it firmly into place until you hear a snap from the plastic clips to form a seamless connection with the rear side of the phone.

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  3. LG G3 Motherboard Cover Assembly Replacement, Battery: étape 3, image 1 de 2 LG G3 Motherboard Cover Assembly Replacement, Battery: étape 3, image 2 de 2

    • Use a fingernail or a prying tool at the marked notch to lever the battery out of its recess.

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  4. LG G3 Motherboard Cover Assembly Replacement: étape 4, image 1 de 2 LG G3 Motherboard Cover Assembly Replacement: étape 4, image 2 de 2

    • Lift the battery out of its recess and remove it.

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  6. LG G3 Motherboard Cover Assembly Replacement, Loudspeaker: étape 5, image 1 de 1

    • Remove the four Phillips #00 screws (4 mm length).

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  7. LG G3 Motherboard Cover Assembly Replacement: étape 6, image 1 de 2 LG G3 Motherboard Cover Assembly Replacement: étape 6, image 2 de 2

    • Insert a thumbnail, or a prying tool like a spudger, into the notch at the bottom left of the back cover you used earlier to remove the back cover.

    • Pry up the plastic panel, including the loudspeaker, until you can get a good grip.

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  8. LG G3 Motherboard Cover Assembly Replacement: étape 7, image 1 de 3 LG G3 Motherboard Cover Assembly Replacement: étape 7, image 2 de 3 LG G3 Motherboard Cover Assembly Replacement: étape 7, image 3 de 3

    • Carefully remove the plastic panel including the loudspeaker by gently pulling it away from the phone assembly.

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  9. LG G3 Motherboard Cover Assembly Replacement, Motherboard Cover Assembly: étape 8, image 1 de 1

    • Remove the eight Phillips #00 screws (4 mm length).

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  10. LG G3 Motherboard Cover Assembly Replacement: étape 9, image 1 de 3 LG G3 Motherboard Cover Assembly Replacement: étape 9, image 2 de 3 LG G3 Motherboard Cover Assembly Replacement: étape 9, image 3 de 3

    • Insert an opening pick between the bottom right corner of the motherboard cover and the motherboard.

    • Pry up the motherboard cover to open the plastic clips which hold the cover in its place.

    • The clips can be a bit resistive. If you're having trouble prying up the motherboard cover, slightly rotate the opening pick sideways to make the process easier.

    • Work your way along the right edge.

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  11. LG G3 Motherboard Cover Assembly Replacement: étape 10, image 1 de 3 LG G3 Motherboard Cover Assembly Replacement: étape 10, image 2 de 3 LG G3 Motherboard Cover Assembly Replacement: étape 10, image 3 de 3

    • Carefully lift the right edge of the motherboard cover.

    • The remaining plastic clips should open during this process or can be unhinged easily by hand.

    • Remove the motherboard assembly.

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Conclusion

If possible, turn on your device and test your repair before installing new adhesive and resealing.

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.

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Dominik Schnabelrauch

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