First we will open the strap with deployant closure. This latch has a metal notch that hooks into a hole. We just have to do a bit of force to separate them. You can also pull the outer rubber out, so the piece itself will leverage and open.

To separate the strap from the Smartwatch we only have to press the clamping piece as shown in the photo. Once the piece is pressed, it will come out practically alone.

To remove the casing we must remove the 4 Torx screws that it has in the back part. Then we will leverage with the opening tool and it will open easily.

To remove the camera disconnect the flex and we can remove it easily.

Now we must remove the motherboard for which we will first disconnect the flex from the screen. Once we remove the plate we have access to the home button. We only have to take it off without forgetting to take off the flex too.

We already have our button!