Difficulty

Moderate

Steps

10

Time Required

                          30 minutes - 1 hour

Sections

4

  • Back Cover
  • 3 steps
  • Front Screen Assembly
  • 2 steps
  • Battery
  • 4 steps
  • Motherboard
  • 1 step

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Introduction

What you need

Step 1

              Back Cover
  • Place the watch screen-down so that its back cover is showing.

Place the watch screen-down so that its back cover is showing.

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Step 2

  • Remove the four 4.2mm screws with a Y00 screwdriver.

Remove the four 4.2mm screws with a Y00 screwdriver.

Step 3

  • This step will ruin the water-proof seal.
  • Wedge the metal spudger in between the back cover and the frame along the seam.
  • Use force to pry the back cover away from the main watch frame.
  • This step requires a lot of force. You can use a Jimmy in place of a metal spudger to make the process easier.

This step will ruin the water-proof seal.

Wedge the metal spudger in between the back cover and the frame along the seam.

Use force to pry the back cover away from the main watch frame.

This step requires a lot of force. You can use a Jimmy in place of a metal spudger to make the process easier.

Step 4

              Front Screen Assembly
  • Detach the three connectors on the motherboard using your fingernail.
  • The connectors are easy to pop off. Minimal force is necessary.

Detach the three connectors on the motherboard using your fingernail.

The connectors are easy to pop off. Minimal force is necessary.

Step 5

  • Separate the motherboard and front screen assembly using a spudger.

Separate the motherboard and front screen assembly using a spudger.

Step 6

              Battery
  • Using a JIS #00 screwdriver, remove the two 4.5 mm screws.

Using a JIS #00 screwdriver, remove the two 4.5 mm screws.

Step 7

  • Disconnect the battery ribbon cable from bracket.
  • Be careful with the battery ribbon cable and motherboard cable (located on the side opposite the battery cable, highlighted with the orange box), as they are very easy to break (ours did when disassembling).
  • Note how the end of the ribbon cable seats in the plastic chassis. Look for the plastic pin on the chassis when re-seating during re-assembly.
  • Separate the chassis from the motherboard.

Disconnect the battery ribbon cable from bracket.

Be careful with the battery ribbon cable and motherboard cable (located on the side opposite the battery cable, highlighted with the orange box), as they are very easy to break (ours did when disassembling).

Note how the end of the ribbon cable seats in the plastic chassis. Look for the plastic pin on the chassis when re-seating during re-assembly.

Separate the chassis from the motherboard.

Step 8

  • Separate the battery from the motherboard.
  • The battery and the motherboard are secured with adhesive; some force is needed.
  • Lithium-ion batteries are potentially dangerous. Handle with extreme care and do not puncture the battery.

Separate the battery from the motherboard.

The battery and the motherboard are secured with adhesive; some force is needed.

Lithium-ion batteries are potentially dangerous. Handle with extreme care and do not puncture the battery.

Step 9

  • When reassembling, place the battery into the plastic assembly first. Don’t stick it to the adhesive first. This way, it’s easy to position the battery cable.
  • When securing the battery cable, make sure the hole that the peg goes through is round. The hole on your replacement battery’s cable could be malformed. You may want to widen the hole before securing the cable.
  • To widen the hole, use the Pro Tech Toolkit’s SIM tool, a small paperclip or similar fine-tipped tool. The tool can also be used to gently press the battery cable into the correct position. Do this carefully to avoid damage.
  • Follow steps 8-1 in reverse order to reassmble.

When reassembling, place the battery into the plastic assembly first. Don’t stick it to the adhesive first. This way, it’s easy to position the battery cable.

When securing the battery cable, make sure the hole that the peg goes through is round. The hole on your replacement battery’s cable could be malformed. You may want to widen the hole before securing the cable.

To widen the hole, use the Pro Tech Toolkit’s SIM tool, a small paperclip or similar fine-tipped tool. The tool can also be used to gently press the battery cable into the correct position. Do this carefully to avoid damage.

Follow steps 8-1 in reverse order to reassmble.

Step 10

              Motherboard
  • Remove the battery’s cable from the chassis using tweezers.

Remove the battery’s cable from the chassis using tweezers.

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

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                    William Hurty

Member since: 10/08/2018

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                       Cal Poly, Team S15-G2, White Fall 2018                        

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                                            34 Guides authored

Mel Swint - Jan 29, 2019

Reply

Where can I purchase a motherboard for my Samsung Gears s3. Cant seem to find them

Need motherboard for samsung gears

Dave Miller - Feb 19, 2019

Try ebay Mel

Shaymaa - May 9, 2019

Reply

Hello I was in MRI and my watch was unresponsive. What is the problem?

Rollins Gamer - Jun 3, 2019

Reply

My button Ribbon on my Mainboard has come detached. It seams like there was some adhesive holding it on so i pressed it together. put it back together but the buttons wont turn the watch on. it is charged. I can’t tell if the Ribbon was soldered on or some adhesive used to make those connections. Any help would be appreciated.