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Core Assembly Removal

What you need

    1. Core Assembly Removal, Unfasten the back cover screws: step 1, image 1 of 1
      • Before starting repairs, take your watch off the charger and power it down.

      • Use a Tri-point Y00 driver to unfasten the four screws on the back of the watch.

      • Don’t worry about removing the screws, they will stay in place in the back cover.

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    2. Core Assembly Removal, Wedge open the back cover: step 2, image 1 of 2 Core Assembly Removal, Wedge open the back cover: step 2, image 2 of 2
      • Insert an opening tool between the back cover and the metal housing.

      • Twist the opening tool to create a wider gap.

      • Don't fully remove the back cover just yet. The sensor flex cable is still connected to the motherboard.

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    3. Core Assembly Removal, Disconnect the sensor flex cable: step 3, image 1 of 3 Core Assembly Removal, Disconnect the sensor flex cable: step 3, image 2 of 3 Core Assembly Removal, Disconnect the sensor flex cable: step 3, image 3 of 3
      • Lay the watch face down.

      • Carefully lift the back cover up from the edge with the buttons to access the sensor connector.

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

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    4. Core Assembly Removal, Remove the back cover: step 4, image 1 of 2 Core Assembly Removal, Remove the back cover: step 4, image 2 of 2
      • Remove the back cover.

      • Make sure the rubber gasket (marked red) is undamaged. If damaged replace it with a new one during reassembly to maintain proper water resistance.

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    1. Core Assembly Removal, Unplug the display connector: step 5, image 1 of 2 Core Assembly Removal, Unplug the display connector: step 5, image 2 of 2
      • Use the flat end of a spudger to pry up and disconnect the display flex cable from the motherboard.

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    2. Core Assembly Removal, Loosen the core assembly: step 6, image 1 of 2 Core Assembly Removal, Loosen the core assembly: step 6, image 2 of 2
      • The core's plastic frame fits tightly within the watch's 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.

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    3. Core Assembly Removal, Remove the core assembly: step 7, image 1 of 3 Core Assembly Removal, Remove the core assembly: step 7, image 2 of 3 Core Assembly Removal, Remove the core assembly: step 7, image 3 of 3
      • Carefully thread the display flex cable through the gap on the core's plastic frame.

      • Remove the core assembly.

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Conclusion

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

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Tobias Isakeit

Member since: 03/31/14

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189 Guides authored

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