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Core Assembly Removal

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  1. Core Assembly Removal, Unfasten the back cover screws: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • 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.

  2. Core Assembly Removal, Wedge open the back cover: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Core Assembly Removal, Wedge open the back cover: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • 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.

  3. Core Assembly Removal, Disconnect the sensor flex cable: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Core Assembly Removal, Disconnect the sensor flex cable: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Core Assembly Removal, Disconnect the sensor flex cable: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • 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.

  4. Core Assembly Removal, Remove the back cover: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Core Assembly Removal, Remove the back cover: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • 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.

  5. Core Assembly Removal, Unplug the display connector: crwdns2935265:05crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Core Assembly Removal, Unplug the display connector: crwdns2935265:05crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Use the flat end of a spudger to pry up and disconnect the display flex cable from the motherboard.

  6. Core Assembly Removal, Loosen the core assembly: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Core Assembly Removal, Loosen the core assembly: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • 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.

  7. Core Assembly Removal, Remove the core assembly: crwdns2935265:07crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Core Assembly Removal, Remove the core assembly: crwdns2935265:07crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Core Assembly Removal, Remove the core assembly: crwdns2935265:07crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Carefully thread the display flex cable through the gap on the core's plastic frame.

    • Remove the core assembly.

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

Tobias Isakeit

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