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Introducción

This guide is used to help users to remove the headphone jack of the Microsoft Lumia 640 LTE. This will help headphones to work on the phone.

  1. Use your thumb or fingernail on the edge/corner of the phone to pry the back cover off the phone. Use your thumb or fingernail on the edge/corner of the phone to pry the back cover off the phone.
    • Use your thumb or fingernail on the edge/corner of the phone to pry the back cover off the phone.

  2. Use the tweezers to pull back the sticker, revealing the screw underneath. Be careful when taking out the screws as they can strip easily. Be careful when taking out the screws as they can strip easily.
    • Use the tweezers to pull back the sticker, revealing the screw underneath.

    • Be careful when taking out the screws as they can strip easily.

  3. Use the T-4 bit to unscrew the screws in the 4 corners, along with the two acres in the middle left side. Use the T-4 bit to unscrew the screws in the 4 corners, along with the two acres in the middle left side.
    • Use the T-4 bit to unscrew the screws in the 4 corners, along with the two acres in the middle left side.

  4. Using the T-4 bit, unscrew the two (2) screws. Keep these screws separate from the screws from back of the phone to ensure that the right screws go where they belong.
    • Using the T-4 bit, unscrew the two (2) screws.

    • Keep these screws separate from the screws from back of the phone to ensure that the right screws go where they belong.

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  6. Using the plastic opening tool to separate the screen from the back plastic casing Use the tweezers to release the clip on the side of device, and remove the back of the phone.
    • Using the plastic opening tool to separate the screen from the back plastic casing

    • Use the tweezers to release the clip on the side of device, and remove the back of the phone.

  7. Using the tweezers or a spudger, pull the gold tab up gently Using the tweezers or spudger, pull the white circuit up gently to completely detach the screen from the phone
    • Using the tweezers or a spudger, pull the gold tab up gently

    • Using the tweezers or spudger, pull the white circuit up gently to completely detach the screen from the phone

    • For Motherboard replacement skip to step 11 after finishing this step

  8. Using the plastic opening tool, carefully get under the gold strip Using tweezers pull up the camera. The camera just sits in there using the tweezers pull up on the depth sensor. This is held in by a strong adhesive
    • Using the plastic opening tool, carefully get under the gold strip

    • Using tweezers pull up the camera. The camera just sits in there

    • using the tweezers pull up on the depth sensor. This is held in by a strong adhesive

  9. Using the plastic opening tool, pry up the ear speaker. This is held in by strong adhesive.
    • Using the plastic opening tool, pry up the ear speaker. This is held in by strong adhesive.

  10. Unscrew 2 remaining screws with T-4 bit.
    • Unscrew 2 remaining screws with T-4 bit.

  11. Remove speaker using tweezers.
    • Remove speaker using tweezers.

  12. Use the plastic opening tool to lift up black tab Using the tweezers, gently pull up on the gold tab using the spudger, slowly get underneath the gold sticker to pry it up. Held down with strong adhesive
    • Use the plastic opening tool to lift up black tab

    • Using the tweezers, gently pull up on the gold tab

    • using the spudger, slowly get underneath the gold sticker to pry it up. Held down with strong adhesive

  13. Remove orange insulator foam with tweezers.
    • Remove orange insulator foam with tweezers.

Conclusión

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

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