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Canon EOS 300 Battery Door Replacement

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  1. Canon EOS 300 Battery Door Replacement, Batteries: crwdns2935265:01crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Batteries: crwdns2935265:01crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Batteries: crwdns2935265:01crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Open up the battery door.

  2. Canon EOS 300 Battery Door Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove the batteries from the camera by sliding them out into your palm.

  3. Canon EOS 300 Battery Door Replacement, Side Panel with Lever: crwdns2935265:03crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Side Panel with Lever: crwdns2935265:03crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Release the side latch to open the back panel.

  4. Canon EOS 300 Battery Door Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove the two black 4.5mm screws above and below the latch.

  5. Canon EOS 300 Battery Door Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:05crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Using your finger, carefully pry open the side panel from the top of camera.

    • Pull panel downwards to remove.

    • Make sure to keep track of the small black piece of rubber under the latch.

  6. Canon EOS 300 Battery Door Replacement, Front Panel: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Front Panel: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove the two silver 6mm Phillips #1 screws.

  7. Canon EOS 300 Battery Door Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Flip camera over to the bottom.

    • Remove the one 5mm Phillips #1 silver screw.

  8. Canon EOS 300 Battery Door Replacement: crwdns2935265:08crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:08crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove the front panel by pulling away from the side with the lever.

    There is another loose part here that can come off on the side of the latch. It's also off in the picture. When reassembling, make sure to reconnect it to the spring as well, otherwise the back panel opening mechanism will not work correctly.

    Ruben - crwdns2934203:0crwdne2934203:0

  9. Canon EOS 300 Battery Door Replacement, Bottom Panel: crwdns2935265:09crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Bottom Panel: crwdns2935265:09crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove three black 7.3mm Phillips #1 screws located on the corners of the camera.

    • Remove five black 4.8mm Phillips #1 screws.

    When reassembling, make sure that the hole on the bottom panel for the rightmost 4.8mm Phillips #1 screw (orange) goes underneath the hole still attached to the camera.

    Ruben - crwdns2934203:0crwdne2934203:0

  10. Canon EOS 300 Battery Door Replacement: crwdns2935265:010crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:010crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:010crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Simply remove the bottom panel by prying it off with your finger.

    • When removing the panel, be sure the bottom of the camera is facing upright. There are loose gears that may fall out.

    • Be wary of a loose piece of foam attached to the bottom panel.

  11. Canon EOS 300 Battery Door Replacement, Side Panel with Grip: crwdns2935265:011crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Side Panel with Grip: crwdns2935265:011crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Side Panel with Grip: crwdns2935265:011crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove the remote control socket cover.

  12. Canon EOS 300 Battery Door Replacement: crwdns2935265:012crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:012crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove two black 4.5mm Phillips #1 screws.

  13. Canon EOS 300 Battery Door Replacement: crwdns2935265:013crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:013crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Remove two black 4.8mm Phillips #1 screws on the front of the camera.

  14. Canon EOS 300 Battery Door Replacement: crwdns2935265:014crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Canon EOS 300 Battery Door Replacement: crwdns2935265:014crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • Pry open the side grip using a spudger.

  15. Canon EOS 300 Battery Door Replacement, Battery Door: crwdns2935265:015crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Battery Door: crwdns2935265:015crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Canon EOS 300 Battery Door Replacement, Battery Door: crwdns2935265:015crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • Remove one black 5mm Phillips #1 screw.

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

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Jordan Tang

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Cal Poly, Team 6-20, Maness Winter 2014 crwdns2935289:0Cal Poly, Team 6-20, Maness Winter 2014crwdne2935289:0

CPSU-MANESS-W14S6G20

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When reassembling, make sure to attach the spring shown in step 8 to the film back release mechanism. I missed this the first time I reassembled the camera and the release/close slide would not automatically close like it did before. I found keeping a finger over the bottom post and using the SIM removal bit to stretch the spring to the top of the slide was very useful. Overall great guide! Thanks for posting!

Cody Mull - crwdns2934203:0crwdne2934203:0

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