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Microsoft Lumia 640 LTE Motherboard Replacement

简介

This guide is used for replacing the motherboard on the device . This makes the device to work at faster speeds.

你所需要的

  1. Microsoft Lumia 640 LTE Motherboard Replacement, Back Cover: 步骤 1 中的图像 1，2 Microsoft Lumia 640 LTE Motherboard Replacement, Back Cover: 步骤 1 中的图像 2，2

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

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  2. Microsoft Lumia 640 LTE Motherboard Replacement, Screen: 步骤 2 中的图像 1，3 Microsoft Lumia 640 LTE Motherboard Replacement, Screen: 步骤 2 中的图像 2，3 Microsoft Lumia 640 LTE Motherboard Replacement, Screen: 步骤 2 中的图像 3，3

    • Use the tweezers to pull back the sticker, revealing the screw underneath.

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

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  3. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 3 中的图像 1，2 Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 3 中的图像 2，2

    • Use a T4 Torx driver to remove the screws in the four corners, along with the two in the middle left side (six total).

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  4. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 4 中的图像 1，2 Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 4 中的图像 2，2

    • Using the T4 Torx driver, unscrew the two 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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  5. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 5 中的图像 1，2 Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 5 中的图像 2，2

    • Use a plastic opening tool to separate the screen from the back plastic casing

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

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  7. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 6 中的图像 1，2 Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 6 中的图像 2，2

    • Using the tweezers or a spudger, pull the gold tab up gently.

    • Using tweezers or a spudger, lift the white connector up gently to completely detach the screen from the phone.

    • For motherboard replacement, skip to Step 11 after finishing this step.

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  8. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 7 中的图像 1，3 Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 7 中的图像 2，3 Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 7 中的图像 3，3

    • Using a plastic opening tool to carefully get under the gold strip.

    • Use tweezers to pull up the camera.

    • Use tweezers to pull up on the depth sensor.

    • This is held in by a strong adhesive.

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  9. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 8 中的图像 1，1

    • Use a plastic opening tool to pry up the ear speaker.

    • This is held in by strong adhesive.

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  10. Microsoft Lumia 640 LTE Motherboard Replacement, Headphone Jack: 步骤 9 中的图像 1，1

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

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  11. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 10 中的图像 1，1

    • Use the tweezers to remove the speaker.

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  12. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 11 中的图像 1，3 Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 11 中的图像 2，3 Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 11 中的图像 3，3

    • Use the plastic opening tool to lift up the black tab.

    • Use the tweezers to gently pull up on the gold tab.

    • Using the spudger, slowly get underneath the gold sticker and pry it up. This sticker is held down with a strong adhesive.

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  13. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 12 中的图像 1，1

    • Use the tweezers to remove the orange insulator foam.

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  14. Microsoft Lumia 640 LTE Motherboard Replacement, Motherboard: 步骤 13 中的图像 1，1

    • Using the pry tool lift up on the black tab

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  15. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 14 中的图像 1，1

    • Using the spudger, press out the motherboard.

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  16. Microsoft Lumia 640 LTE Motherboard Replacement: 步骤 15 中的图像 1，1

    • Gently wiggle out the motherboard.

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结论

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

2等其他人完成本指南。

一条评论

I have a Microsoft luma 640 LTE ...the battery won't charge ...so I got another battery and it won't power on...the new battery is good...it's the side button that wont power on when I puch it...does the motherboard need to be replaced? I got another Microsoft luma 640 phone that I could switch the motherboard out with my old phone...I'm question is will I be able to access my contacts, pictures etc after changing out the motherboard..

H.wise - 回复

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