https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-40d-flash-problems/m-p/7951#M1056 <P>How exactly do I go about doing this? Thank you so much!</P> Tue, 18 Dec 2012 14:25:12 GMT hegelegatt 2012-12-18T14:25:12Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-40d-flash-problems/m-p/7919#M1054 <P>Hi! I am having problems with the flash on my EOS 40d. I get a message saying a incomp. flash or flash's power is turned off. I think this started after another photographer attached his external flash to my camera (no idea what flash he used). What can I do to fix this so I can get my internal flash to start working again?</P><P>&nbsp;</P><P>Thanks!</P> Tue, 18 Dec 2012 06:32:05 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-40d-flash-problems/m-p/7919#M1054 hegelegatt 2012-12-18T06:32:05Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-40d-flash-problems/m-p/7939#M1055 <P>This advice might apply:</P><BLOCKQUOTE><HR /><a href="https://community.usa.canon.com/t5/user/viewprofilepage/user-id/639">@bud411</a> wrote:<BR />Had that happen to my T1i, turned out the micro switch in the rails on the hot shoe was stuck. After removing the metal plate &amp; freeing it up with a small screwdriver, it's never done it again...<HR /></BLOCKQUOTE> Tue, 18 Dec 2012 14:28:51 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-40d-flash-problems/m-p/7939#M1055 jfo 2012-12-18T14:28:51Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-40d-flash-problems/m-p/7951#M1056 <P>How exactly do I go about doing this? Thank you so much!</P> Tue, 18 Dec 2012 14:25:12 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/EOS-40d-flash-problems/m-p/7951#M1056 hegelegatt 2012-12-18T14:25:12Z