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We have to solder 3 wires to the release button :
    One that will act as a ground
    One that will be for the AutoFocus
    The last beeing for the release button.

Take the board out by unscrewing the 3 screws hodling it.
You might have to lift the speaker gently with a screwdriver as it is lightly glued to the top section.
Viewing the release button like on the picture, solder 3 thin wires to the top left, bottom left and bottom right legs of it.
The top right is not used.
The wires have to be as small as possible and not too rigid.
I could have used something better, but i ended up with strands out of a CAT5 network cable. I guess using something like thin strap wire would be better, or strands out an IDE ATA133 ribon cable (the 80 wires ones).
The wires have to be thin. If not they will get in the way of the zoom mechanism (the little slider just under the release button).
On mine, the wires are slightly too fat and sometimes the zoom button does not go back to it's original position by itself...

Let's label the pins of the button 1 to 4 from the top left one, clock-wise.
Shorting 1 and 3 will tell the camera to focus. It is like pressing the release button half way.
Shorting 1 and 4 will act like pressing the release all the way, taking the picture. Even if you don't short 1 and 3 before to focus, the camera will focus prior to taking the picture.
Screw the board back in place, trying to have the wire as away as you can from the zoom mechanism.

You are done with the biggest part !!!
Since we don't have the eyepiece anymore, a good idea is to glue a piece of clear (or not) plastic to the front opening;
That way you'll keep dust out :-)

Maybe some might want to take the space and opening opportunity to place a nice super bright white led  to help focusing on dark subjects during macro shoots !!!

Now to the remote section...

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