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Use this guide to replace a defective motherboard in your Samsung Galaxy Watch Active2.
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Turn off the Galaxy Watch Active2 by pushing and holding the bottom button for approximately 3 seconds. You should feel a short vibration.
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When the "Power off" symbol appears, tap the center of the screen to make it shut down. You should feel a longer vibration for confirmation.
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Use a Tri-point Y00 screwdriver to remove the four 4 mm-long screws on the back of the watch.
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Use an opening pick and place it between the plastic back cover and the metal housing near the buttons.
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Push the opening pick into the gap to separate the back cover from the housing.
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Carefully lift the back cover to access the sensor array connector.
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Use a spudger to disconnect the sensor array from the motherboard.
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Remove the back cover.
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Use a spudger to disconnect the display assembly and the speaker.
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Use a spudger to disconnect the barometric sensor, the buttons, and the microphone.
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Place a spudger underneath the motherboard at the top right next to the display connector.
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Slightly twist and lever the spudger to loosen the core assembly.
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Grab the core assembly and carefully slide it out from under the cables.
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Remove the core assembly.
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Flip the core assembly over so the motherboard faces down.
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Use the tip of an opening pick to peel the top button off the plastic frame.
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Use a Phillips screwdriver to remove the 4.4 mm-long screw holding the motherboard in place.
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Place the flat end of a spudger between the motherboard and the plastic frame near the copper coil at the bottom right.
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Twist the spudger to free the motherboard from the plastic tabs.
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Slide the motherboard out from under the remaining plastic tabs to remove it.
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Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
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.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
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.
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Hi, I am having issues with bluetooth, is it a replacement or do I need to swap the MB? Thank you
When you have ruled out any software issues (tried restart, factory reset, software update, etc) then this is most likely a MB replacement since all the modules are integrated on that tiny thing.
does the watch active have the same motherboard as the watch active 2
Nope, the Watch Active has a different motherboard.
My watch stopped vibrating all together, which part do I need to replace?
