Difficulty

Moderate

Steps

13

Time Required

                          10 - 20 minutes

Sections

3

  • How to Open the Samsung Galaxy Watch4 Classic
  • 5 steps
  • Motherboard
  • 5 steps
  • Core Assembly Removal
  • 3 steps

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0

  • BackSamsung Galaxy Watch4 Classic

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Introduction

What you need

Step 1

              Power down your watch
  • Before starting repairs, take your watch off the charger and power it down.
  • Remove the watch band.

Before starting repairs, take your watch off the charger and power it down.

Remove the watch band.

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Step 2

              Unscrew the back cover
  • Use a Tri-point Y000 screwdriver to remove the four 4.0 mm-long screws securing the back cover.

Use a Tri-point Y000 screwdriver to remove the four 4.0 mm-long screws securing the back cover.

Step 3

              Pry open the back cover
  • Insert an opening tool into the seam between the back cover and the metal housing.
  • Twist the opening tool to create a gap.
  • Don’t try to remove the back cover all the way yet. The sensor flex cable is still connected to the motherboard.

Insert an opening tool into the seam between the back cover and the metal housing.

Twist the opening tool to create a gap.

Don’t try to remove the back cover all the way yet. The sensor flex cable is still connected to the motherboard.

Step 4

              Disconnect the sensor flex cable
  • Lay the watch face down.
  • Carefully swing open the back cover by folding it to the opposite site of the created gap.
  • Use the flat end of a spudger to pry up and disconnect the sensor flex cable from the motherboard.

Lay the watch face down.

Carefully swing open the back cover by folding it to the opposite site of the created gap.

Use the flat end of a spudger to pry up and disconnect the sensor flex cable from the motherboard.

Step 5

              Remove the back cover
  • Remove the back cover.
  • Make sure the rubber gasket is undamaged. If damaged, replace it with a new one during reassembly to maintain proper water resistance.

Remove the back cover.

Make sure the rubber gasket is undamaged. If damaged, replace it with a new one during reassembly to maintain proper water resistance.

Step 6

              Disconnect the hall sensor flex cable
  • Use the pointed end of a spudger to disconnect the hall sensor flex cable.

Use the pointed end of a spudger to disconnect the hall sensor flex cable.

Step 7

              Disconnect the display flex cable
  • Use a spudger to disconnect the display flex cable.

Use a spudger to disconnect the display flex cable.

Step 8

              Disconnect the side buttons
  • Use a spudger to disconnect the crown button flex cable.

Use a spudger to disconnect the crown button flex cable.

Step 9

              Unscrew the motherboard
  • Use a Phillips screwdriver to remove the 4.4 mm-long screw securing the motherboard.

Use a Phillips screwdriver to remove the 4.4 mm-long screw securing the motherboard.

Step 10

              Remove the motherboard
  • Use your fingers to lift the motherboard out from the watch assembly towards the bottom of the watch.
  • During reassembly, make sure none of the flex cables become trapped underneath the motherbaord.

Use your fingers to lift the motherboard out from the watch assembly towards the bottom of the watch.

During reassembly, make sure none of the flex cables become trapped underneath the motherbaord.

Step 11

              Lift the core assembly
  • Place the corner of the flat end of a spudger in the small opening of the barometric sensor, on the opposite side of the display connector.
  • Twist and tilt the spudger to lever the core assembly out of the metal housing.

Place the corner of the flat end of a spudger in the small opening of the barometric sensor, on the opposite side of the display connector.

Twist and tilt the spudger to lever the core assembly out of the metal housing.

Step 12

              Release the core assembly
  • Thread the display flex cable through the opening in the core assembly.

Thread the display flex cable through the opening in the core assembly.

Step 13

              Remove the core assembly
  • Remove the core assembly.

Remove the core assembly.

If possible, turn on your device and test your repair before installing new adhesive and resealing.To reassemble your device, follow these instructions in reverse order. Take your e-waste to an R2 or e-Stewards certified recycler.Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

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Author

                    Adriana Zwink

Member since: 12/18/2019

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