Core Assembly Removal

はじめに

Use this guide to remove the core assembly in your TicWatch Pro 3 GPS, including the motherboard, daughterboard, battery and watch buttons.

You’ll need replacement adhesive to reattach the back cover assembly when reassembling the device. Your device will function normally, but will lose its IP (Ingress Protection) rating.

必要な工具と部品

手順1 Power down your watch

Core Assembly Removal, Power down your watch: 手順 1、 2の画像 1

Core Assembly Removal, Power down your watch: 手順 1、 2の画像 2

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

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手順2 Unfasten the back cover

Core Assembly Removal, Unfasten the back cover: 手順 2、 1の画像 1

Use a Torx T3 screwdriver to remove the four 4.1 mm-long screws securing the back cover.

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手順3 Loosen the back cover adhesive

Core Assembly Removal, Loosen the back cover adhesive: 手順 3、 1の画像 1

Apply a heated iOpener to the rear side of the watch for 5 minutes to loosen the adhesive underneath.
A hair dryer, heat gun, or hot plate may also be used, but be careful not to overheat the device.

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手順4 Pry up the back cover assembly

Core Assembly Removal, Pry up the back cover assembly: 手順 4、 3の画像 1

Core Assembly Removal, Pry up the back cover assembly: 手順 4、 3の画像 2

Core Assembly Removal, Pry up the back cover assembly: 手順 4、 3の画像 3

Insert the flat end of a spudger into the microphone opening at the top edge of the back cover.
Pry upwards to loosen the back cover assembly. This may require some force.
Don't try to remove the back cover assembly all the way yet. It's still connected to the daughterboard.
Swing the back cover assembly open by 45 degrees to gain access to the sensor assembly cable.

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手順5 Disconnect the sensor assembly cable

Core Assembly Removal, Disconnect the sensor assembly cable: 手順 5、 2の画像 1

Core Assembly Removal, Disconnect the sensor assembly cable: 手順 5、 2の画像 2

Use a spudger to disconnect the sensor assembly cable by prying the connector straight up from its socket.
To re-attach press connectors like this one, carefully align and press down on one side until it clicks into place, then repeat on the other side. Do not press down on the middle. If the connector is misaligned, the pins can bend, causing permanent damage.

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手順6 Remove the back cover assembly

Core Assembly Removal, Remove the back cover assembly: 手順 6、 3の画像 1

Core Assembly Removal, Remove the back cover assembly: 手順 6、 3の画像 2

Core Assembly Removal, Remove the back cover assembly: 手順 6、 3の画像 3

Remove the back cover assembly.

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手順7 Disconnect the microphone cable

Core Assembly Removal, Disconnect the microphone cable: 手順 7、 2の画像 1

Core Assembly Removal, Disconnect the microphone cable: 手順 7、 2の画像 2

Use a spudger to disconnect the microphone cable by prying the connector straight up from its socket.

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手順8 Unfasten the core assembly

Core Assembly Removal, Unfasten the core assembly: 手順 8、 1の画像 1

Use a Phillips screwdriver to remove the three 4.1 mm-long screws securing the core assembly.

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手順9 Pry up the core assembly

Core Assembly Removal, Pry up the core assembly: 手順 9、 2の画像 1

Core Assembly Removal, Pry up the core assembly: 手順 9、 2の画像 2

Insert the point of a spudger between the right edge of the core assembly and the watch frame.
Pry upwards to loosen the core assembly.
Don't try to remove the core assembly all the way yet. It's still connected to the screen.

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手順10 Swing open the core assembly

Core Assembly Removal, Swing open the core assembly: 手順 10、 3の画像 1

Core Assembly Removal, Swing open the core assembly: 手順 10、 3の画像 2

Core Assembly Removal, Swing open the core assembly: 手順 10、 3の画像 3

Carefully swing open the core assembly like the front cover of a book.
Avoid straining or tearing the display cables at the bottom of the core assembly.

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