Hack Canon EOS 300D to confirm focus with all lenses, permanently.

Step 2 Disassemble the rear cover!

This is not very hard, you just have to play by rules and follow several steps.

1- Take out the strap, battery, rubber eye cup and CF card, put a body cap on to keep your mirror box clean.

Now remove the rear panel by doing the rest:

2- Remove grey plug on back of camera that covers a screw and remove the screw (Photo 1)
3- Remove three screws at bottom of camera (Photo 2)
4- Remove two screws under CF compartment cover (Photo 3)
5- Remove two screws on the black rubber panel (where you have ports - Photo 4)
6- Remove the black rubbery black panel and rubber port cover by popping it out from the bottom edge using a sharp knife (Photo 5)
7- Now you can gently take the rear cover out but be careful there is a flat ribbon cable connecting the LCD and the buttons on it to the mainboard. You have to remove that from the mainboard. The ribbon cable does not just pull out of its connector. Instead, the connector is a "hinged type". The connector is color white and its hinge is black. There are two small black hinge tabs at each end of the connector. Lift these two tabs upward with a small flathead jewelers screwdriver and the black hinge will rotate upwards into a vertical position. This releases pressure on the ribbon cable and the cable can be pulled out with the rubber tipped pliers. (Photo 6)

Now you exposed the mainboard of your camera. But that's not enough. We need to access the front face of the camera where we need few soldering job to do. We'll do that in the next step.