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Opening the Galaxy Watch3

What you need

  1. Opening the Galaxy Watch3, 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.

    I heeded your advice - and now need another screw because it fell out!!!

    Paul - Reply

    I must have stripped the screws out or either the dirt and sweat is so packed into the screw i can't get a good bite to unscrew the screws. What can I do about this? This watch battery DOES NOT hold a charge for more than 5min, should I trash the watch?

    ShaneWizdum - Reply

  2. Opening the Galaxy Watch3, Wedge open the back cover: step 2, image 1 of 2 Opening the Galaxy Watch3, 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.

    Could not get the back housing off

    Joseph Ortiz, Jr - Reply

  3. Opening the Galaxy Watch3, Disconnect the sensor flex cable: step 3, image 1 of 3 Opening the Galaxy Watch3, Disconnect the sensor flex cable: step 3, image 2 of 3 Opening the Galaxy Watch3, 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.

  4. Opening the Galaxy Watch3, Remove the back cover: step 4, image 1 of 2 Opening the Galaxy Watch3, 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.

Conclusion

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

One other person completed this guide.

Tobias Isakeit

Member since: 03/31/14

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3 Comments

where can I get the galaxy watch3 rubber gasket?

regards

Miguel Vera - Reply

That’s a good question. As for the previous models it is very hard to find those rubber gaskets. Using a “liquid rubber gasket” might be one solution to that. (Use carefully to not spill too much on and into the watch)

Tobias Isakeit -

I tried to remove all of the screws from the back cover, but 3 of the 4 screws remained and seemed to be fused to the main base of the watch. One of the screws was stripped. Now only 1 screw is engaged with the back cover. (I might need to replace the back cover. My watch is glitching which is draining the battery. I would like to fix the problems myself. Where can I get specific advice?

Antoinette - Reply

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