Core Assembly Removal

简介

Use this guide to remove the core assembly in the Samsung Galaxy Watch4 Classic.

你所需要的

步骤 1 Power down your watch

Core Assembly Removal, Power down your watch: 步骤 1 中的图像 1，1

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

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步骤 2 Unscrew the back cover

Core Assembly Removal, Unscrew the back cover: 步骤 2 中的图像 1，1

Use a Tri-point Y00 screwdriver to remove the four 4.0 mm-long screws securing the back cover.

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步骤 3 Pry open the back cover

Core Assembly Removal, Pry open the back cover: 步骤 3 中的图像 1，2

Core Assembly Removal, Pry open the back cover: 步骤 3 中的图像 2，2

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.

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步骤 4 Disconnect the sensor flex cable

Core Assembly Removal, Disconnect the sensor flex cable: 步骤 4 中的图像 1，2

Core Assembly Removal, Disconnect the sensor flex cable: 步骤 4 中的图像 2，2

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.

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步骤 5 Remove the back cover

Core Assembly Removal, Remove the back cover: 步骤 5 中的图像 1，1

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.

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步骤 6 Disconnect the hall sensor flex cable

Core Assembly Removal, Disconnect the hall sensor flex cable: 步骤 6 中的图像 1，2

Core Assembly Removal, Disconnect the hall sensor flex cable: 步骤 6 中的图像 2，2

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

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步骤 7 Disconnect the display flex cable

Core Assembly Removal, Disconnect the display flex cable: 步骤 7 中的图像 1，2

Core Assembly Removal, Disconnect the display flex cable: 步骤 7 中的图像 2，2

Use a spudger to disconnect the display flex cable.

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步骤 8 Disconnect the side buttons

Core Assembly Removal, Disconnect the side buttons: 步骤 8 中的图像 1，2

Core Assembly Removal, Disconnect the side buttons: 步骤 8 中的图像 2，2

Use a spudger to disconnect the crown button flex cable.

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步骤 9 Unscrew the motherboard

Core Assembly Removal, Unscrew the motherboard: 步骤 9 中的图像 1，1

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

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步骤 10 Remove the motherboard

Core Assembly Removal, Remove the motherboard: 步骤 10 中的图像 1，3

Core Assembly Removal, Remove the motherboard: 步骤 10 中的图像 2，3

Core Assembly Removal, Remove the motherboard: 步骤 10 中的图像 3，3

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.

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步骤 11 Lift the core assembly

Core Assembly Removal, Lift the core assembly: 步骤 11 中的图像 1，3

Core Assembly Removal, Lift the core assembly: 步骤 11 中的图像 2，3

Core Assembly Removal, Lift the core assembly: 步骤 11 中的图像 3，3

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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步骤 12 Release the core assembly

Core Assembly Removal, Release the core assembly: 步骤 12 中的图像 1，2

Core Assembly Removal, Release the core assembly: 步骤 12 中的图像 2，2

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

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步骤 13 Remove the core assembly

Core Assembly Removal, Remove the core assembly: 步骤 13 中的图像 1，1

Remove the core assembly.

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结论

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.