Yet another homemade shutter release tutorial... sort of...
Inspired from
[link] and
[link]1) The stuff that we need.

2) Open the handsfree case from the red X point with a tiny screwdriver.

3) Now we will remove the microphone using soldering gun.

4) Now we need to remove the unnecessary wires and parts. Use your soldering gun and some wires to do the next step as it shows on the picture.

5) Assembly the "handsfree" case and enjoy.

6) Yeah... Looks great


7) Even from that angle!

8) You can also use the Sony Ericsson mobile phone to trigger your Canon.

