Difficulty

Easy

Steps

10

Time Required

                          5 minutes

Sections

3

  • Display Assembly
  • 4 steps
  • GPS Antenna
  • 2 steps
  • Motherboard
  • 4 steps

Flags

0

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Introduction

What you need

Step 1

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

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

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Step 2

  • 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.

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.

Step 3

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

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

Step 4

  • Set the watch face aside.

Set the watch face aside.

Step 5

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

Locate the antenna, which is located on the motherboard.

Step 6

  • Carefully remove the antenna, and set it aside.

Carefully remove the antenna, and set it aside.

Step 7

              Motherboard
  • 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.

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.

Step 8

  • 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.

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.

Step 9

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

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

Step 10

  • Motherboard without metal cover

Motherboard without metal cover

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

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                                                                                      6 other people completed this guide.

Author

                                      with 3 other contributors 


                    Adam Estabrook

Member since: 09/07/2018

997 Reputation

                                      5 Guides authored                  



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Team

                       Appalachian State University, Team S1-G3, Menagarishvili Fall 2018                        

                                                  Member of Appalachian State University, Team S1-G3, Menagarishvili Fall 2018 



                    APSU-MENAGARISHVILI-F18S1G3                     


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                                            5 Guides authored

Jan Stefan - Jun 28, 2019

Reply

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

slowrun - Aug 21, 2019

Reply

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

arnaud.lhote - Aug 22, 2019

Reply

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.

ilija.veselica - Aug 22, 2019

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.

Matteo - Aug 26, 2019

Reply

In Italy it’s the same story… impossible to repair ( button START/STOP does not function ).

I’m searching on eBay for a USED low cost Fenix 3 for change motherboard…

At the moment is the unic solutions…