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LG Cosmos Motherboard Replacement

Introduction

Replacing a faulty motherboard is simple, but time consuming.

What you need

  1. LG Cosmos Motherboard Replacement, Battery: step 1, image 1 of 1

    • Apply an upward force to slide the back cover off.

    Edit

  2. LG Cosmos Motherboard Replacement: step 2, image 1 of 1

    • Use your finger to push down on the top of the battery and pull it out.

    Edit

  3. LG Cosmos Motherboard Replacement, Rear Case: step 3, image 1 of 1

    • Remove the five 3.0mm Phillips #000 screws along the edge of the rear case.

    Edit

  4. LG Cosmos Motherboard Replacement: step 4, image 1 of 1

    • Use a plastic opening tool to pry the rear case loose.

    Edit

  6. LG Cosmos Motherboard Replacement: step 5, image 1 of 1

    • Once the rear case is loose, lift it from the rest of the phone.

    Edit

  7. LG Cosmos Motherboard Replacement, Motherboard: step 6, image 1 of 1

    • Remove the two 2.9 mm Phillips #000 screws that are slightly off-centered to the right.

    Edit

  8. LG Cosmos Motherboard Replacement: step 7, image 1 of 1

    • Use the plastic opening tool to pry the motherboard loose.

    Edit

  9. LG Cosmos Motherboard Replacement: step 8, image 1 of 1

    • Hold the motherboard from the top and bottom and slowly lift the motherboard until you feel a pull.

    • The flex cable is attached at the bottom of the motherboard and can be damaged if too much lifting force is applied.

    Edit

  10. LG Cosmos Motherboard Replacement: step 9, image 1 of 1

    • Once the motherboard is lifted , rotate the motherboard up 90 degrees to the right.

    Edit

  11. LG Cosmos Motherboard Replacement: step 10, image 1 of 1

    • Use your finger to pull the flex cable out from its connector.

    Edit

  12. LG Cosmos Motherboard Replacement: step 11, image 1 of 1

    • Pull the motherboard away from the rest of the phone.

    Edit
Conclusion

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

One other person completed this guide.

Author

with 3 other contributors

Johnny Phane

Member since: 04/15/13

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Team

Cal Poly, Team 13-63, Johann Spring 2013 Member of Cal Poly, Team 13-63, Johann Spring 2013

CPSU-JOHANN-S13S13G63

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10 Guides authored

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