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Samsung Galaxy Watch4 Motherboard Replacement

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  1. Samsung Galaxy Watch4  Motherboard Replacement, Power down your Galaxy Watch4: étape 1, image 1 de 1
    • Before starting repairs, take your watch off the charger and power it down.

    • Remove the watch band.

  2. Samsung Galaxy Watch4  Motherboard Replacement, Unscrew the back cover: étape 2, image 1 de 1
    • Use a Tri-point Y000 screwdriver to remove the four 4.0 mm-long screws.

  3. Samsung Galaxy Watch4  Motherboard Replacement, Wedge open the back cover: étape 3, image 1 de 2 Samsung Galaxy Watch4  Motherboard Replacement, Wedge open the back cover: étape 3, image 2 de 2
    • 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.

  4. Samsung Galaxy Watch4  Motherboard Replacement, Disconnect the sensor flex cable: étape 4, image 1 de 2 Samsung Galaxy Watch4  Motherboard Replacement, Disconnect the sensor flex cable: étape 4, image 2 de 2
    • Lay the watch face down.

    • Carefully swing open the back cover by folding the back cover 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.

  5. Samsung Galaxy Watch4  Motherboard Replacement, Remove the back cover: étape 5, image 1 de 1
    • 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.

  6. Samsung Galaxy Watch4  Motherboard Replacement, Unscrew the motherboard: étape 6, image 1 de 1
    • Use a Phillips screwdriver to remove the 4.4 mm-long screw securing the motherboard.

  7. Samsung Galaxy Watch4  Motherboard Replacement, Disconnect the display flex cable: étape 7, image 1 de 2 Samsung Galaxy Watch4  Motherboard Replacement, Disconnect the display flex cable: étape 7, image 2 de 2
    • Use the flat end of a spudger to disconnect the display flex cable.

  8. Samsung Galaxy Watch4  Motherboard Replacement, Disconnect the side buttons: étape 8, image 1 de 2 Samsung Galaxy Watch4  Motherboard Replacement, Disconnect the side buttons: étape 8, image 2 de 2
    • Use a spudger to disconnect the flex cable of the crown buttons.

  9. Samsung Galaxy Watch4  Motherboard Replacement, Remove the motherboard: étape 9, image 1 de 2 Samsung Galaxy Watch4  Motherboard Replacement, Remove the motherboard: étape 9, image 2 de 2
    • Use your fingers to lift the motherboard out from the watch assembly towards the bottom of the watch.

Conclusion

If possible, turn on your device and test your repair before 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.

Une autre personne a terminé cette réparation.

Adriana Zwink

Membre depuis le 12/18/19

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