Having problems with your Canon EOS 400D / Rebel XTi Digital Camera ?

Auto focus suddenly stopped working

\015 I have a Canon EOS Rebel xti and switched from AF to MF on the lens barrel. When I switched back to the AF position, it wouldn't work.\015

Answers :

This may not be the same as your issue, but our AF stopped working as well. I tried all the recommended fixes - removing the card and battery, recharging the latter, removing the lens and cleaning the contacts, etc. None of those things worked. However, I then switched to MF, requiring me to turn the barrel, and I realized it was stuck and just needed a little force to get unstuck. Might have been the humidity. Anyway, our problem was solved - AF was back to normal after that.
Turn the camera off and remove the battery. Wait a few seconds then plug the battery back in. This should cause the camera to reset itself and hopefully get the autofocus working again.
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\015\012Hope this works for you
Repair Help & Product Troubleshooting for Canon EOS 400D / Rebel XTi Digital Camera

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