Introduction

Use this guide to replace the motherboard.

  1. Poke a paperclip into the hole to the right of the SIM Card Tray. The SIM Card Tray will automatically pop out.
    • Poke a paperclip into the hole to the right of the SIM Card Tray. The SIM Card Tray will automatically pop out.

  2. Pull out the SIM Card Tray with your fingers. Pull out the SIM Card Tray with your fingers.
    • Pull out the SIM Card Tray with your fingers.

  3. Make sure the USB cover on the bottom of the phone is removed first. Starting at a corner, slowly work your way around the edge of the sides with  your prying tool to loosen the front panel.
    • Make sure the USB cover on the bottom of the phone is removed first.

    • Starting at a corner, slowly work your way around the edge of the sides with your prying tool to loosen the front panel.

      • Take your time. A lot of force is necessary to loosen the front panel.

  4. Slowly pull the panel apart from the back of the phone.
    • Slowly pull the panel apart from the back of the phone.

    • Apply a moderate force to pry the panel from the back of the phone.

  5. Set the device down so that the bottom of the phone is facing to the right.
    • Set the device down so that the bottom of the phone is facing to the right.

    • Gently take off the piece of black tape surrounding the motherboard.

    • Be careful not to rip the tape.

  6. Use your tweezers to take off the yellow tape on the bottom left corner of the phone.
    • Use your tweezers to take off the yellow tape on the bottom left corner of the phone.

  7. Rotate your phone 90 degrees clockwise so the bottom of the phone is facing you.
    • Rotate your phone 90 degrees clockwise so the bottom of the phone is facing you.

    • Use the T5 Torx screwdriver to remove the two 4mm screws located at the bottom of the phone.

  8. Use the Phillips #000 screwdriver to remove the single 2.7mm void screw on the bottom right.
    • Use the Phillips #000 screwdriver to remove the single 2.7mm void screw on the bottom right.

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  10. Rotate your phone back 90 Degrees counter-clockwise.
    • Rotate your phone back 90 Degrees counter-clockwise.

    • Use your tweezers to take off the small metal retaining bracket on the bottom right of the phone.

  11. Remove the following Phillips #000 screws from the motherboard:
    • Remove the following Phillips #000 screws from the motherboard:

      • Four 1.6 mm screws

      • Two 1.5 mm screws

  12. Use your pry tool to unfasten the connectors on both sides of the motherboard. The connectors will still be attached to the green camera board at the top so DO NOT try to pull them off or bend them severely.
    • Use your pry tool to unfasten the connectors on both sides of the motherboard.

    • The connectors will still be attached to the green camera board at the top so DO NOT try to pull them off or bend them severely.

  13. Use your tweezers to remove the two pieces of yellow tape shown.
    • Use your tweezers to remove the two pieces of yellow tape shown.

  14. Use your tweezers to gently snap up the white board on the bottom right of the motherboard. Use your tweezers to gently snap up the white board on the bottom right of the motherboard.
    • Use your tweezers to gently snap up the white board on the bottom right of the motherboard.

  15. Use your tweezers to disconnect the black connector on the bottom right of the motherboard.
    • Use your tweezers to disconnect the black connector on the bottom right of the motherboard.

    • Be careful not to bend the Flex Cable of the Connector.

  16. Use your tweezers to gently snap the other white board on the bottom right of the motherboard up. Use your tweezers to gently snap the other white board on the bottom right of the motherboard up.
    • Use your tweezers to gently snap the other white board on the bottom right of the motherboard up.

  17. Use your tweezers to disconnect the other small connector on the bottom right of the motherboard.
    • Use your tweezers to disconnect the other small connector on the bottom right of the motherboard.

    • Be careful not to bend the Flex Cables for the Connector.

  18. Rotate the phone 180 degrees. Use your tweezers to gently snap up the white board on the top left of the motherboard.
    • Rotate the phone 180 degrees.

    • Use your tweezers to gently snap up the white board on the top left of the motherboard.

  19. Use your tweezers to disconnect the cable on the top left of the motherboard.
    • Use your tweezers to disconnect the cable on the top left of the motherboard.

    • Be careful not to bend the Flex Cable of the Connector.

  20. Use your tweezers to gently snap up the black board on the top left of the motherboard. Use your tweezers to gently snap up the black board on the top left of the motherboard.
    • Use your tweezers to gently snap up the black board on the top left of the motherboard.

  21. Use your tweezers to gently remove the yellow connector on the top left of the phone.
    • Use your tweezers to gently remove the yellow connector on the top left of the phone.

  22. Remove the long black wire on the left of the motherboard.
    • Remove the long black wire on the left of the motherboard.

  23. Reorient the phone so that the green camera board is farthest from you.
    • Reorient the phone so that the green camera board is farthest from you.

    • Use your tweezers to remove the two wires located at the top of the board. The wires snap off very easily so not much force is needed.

  24. Use a Phillips #000 screwdriver to remove the two 3.9mm  screws on top of motherboard.
    • Use a Phillips #000 screwdriver to remove the two 3.9mm screws on top of motherboard.

  25. Now, use your fingers to slowly pull up the motherboard and remove it from the phone. Now, use your fingers to slowly pull up the motherboard and remove it from the phone.
    • Now, use your fingers to slowly pull up the motherboard and remove it from the phone.

Conclusion

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

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Brandon Killian

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Cal Poly, Team 4-43, Amido Fall 2014 Member of Cal Poly, Team 4-43, Amido Fall 2014

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