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Garmin Fenix 3 Motherboard Replacement

Introdução

Even the best electronics die out over time, especially devices used in harsh conditions. This guide will show how to replace the motherboard of your Garmin Fenix 3 if the electronics are showing signs of failure. You will need a T6 Torx screwdriver, a T5 Torx screwdriver, and a spudger.

O que você precisa

  1. Garmin Fenix 3 Motherboard Replacement, Display Assembly: passo 1, imagem 1 %32 Garmin Fenix 3 Motherboard Replacement, Display Assembly: passo 1, imagem 2 %32

    • Use a T6 screwdriver to remove the five 1.7 mm screws from the watch face.

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  2. Garmin Fenix 3 Motherboard Replacement: passo 2, imagem 1 %32

    • Carefully lift the face off the watch base.

    • Do not yank the face. A ribbon connector connects the face and the motherboard, and yanking could result in damage to the motherboard or ribbon.

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  3. Garmin Fenix 3 Motherboard Replacement: passo 3, imagem 1 %32

    • Use a spudger to lift up and free the screen ribbon cable's press-fit connector from the motherboard.

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  4. Garmin Fenix 3 Motherboard Replacement: passo 4, imagem 1 %32

    • Set the watch face aside.

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  6. Garmin Fenix 3 Motherboard Replacement, GPS Antenna: passo 5, imagem 1 %32

    • Locate the antenna, which is located on the motherboard.

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  7. Garmin Fenix 3 Motherboard Replacement: passo 6, imagem 1 %32

    • Carefully remove the antenna, and set it aside.

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  8. Garmin Fenix 3 Motherboard Replacement, Motherboard: passo 7, imagem 1 %32 Garmin Fenix 3 Motherboard Replacement, Motherboard: passo 7, imagem 2 %32 Garmin Fenix 3 Motherboard Replacement, Motherboard: passo 7, imagem 3 %32
    Ferramenta utilizada neste passo:
    Tweezers
    $4.99
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    • Locate the two silver 1.4 mm T5 screws, and carefully unscrew them.

    • To avoid losing or dropping the screws once they are loose, use tweezers to extract them.

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  9. Garmin Fenix 3 Motherboard Replacement: passo 8, imagem 1 %32 Garmin Fenix 3 Motherboard Replacement: passo 8, imagem 2 %32

    • Lift the watch and turn it over one hand. The motherboard should fall out easily.

    • When reinserting your motherboard, slide it in instead of pressing it. The motherboard must go beneath a lip at the base of the watch body.

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  10. Garmin Fenix 3 Motherboard Replacement: passo 9, imagem 1 %32

    • Using the spudger, separate the motherboard from the battery, which are both held together with a mild adhesive.

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  11. Garmin Fenix 3 Motherboard Replacement: passo 10, imagem 1 %32

    • Motherboard without metal cover

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Conclusão

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

6 outras pessoas executaram este guia.

18 comentários

Hello,

i’m looking for replacement of start/stop button micro switch. Do you know what is the switch number which i can look for?

Thank you

Jan Stefan - Responder

that's my problem too and i can't find any solution.

Hamidmonti -

How did you remove the metal cover from the moterboard (last picture)

slowrun - Responder

Where can I find a replacement Motherboard ? None of my buttons are responding and I can’t even do a Factory reset.

All that works is switching off and back on.

arnaud.lhote - Responder

I have exact same issue. I sent my watch to official repair service to Split (Croatia) and they said they aren’t able to fix it. I can see only main screen of the watch, buttons don’t respond at all. Would like to know how to fix the issue.

ilija.veselica -

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