It's my 7th day with my second hand Canon 1000D. But now, it's stopped capturing pictures in full auto, portrait, close-up, landscape, night portrait, sports, and flash off modes when used in autofocus mode. When I switch to full auto or scene modes in auto focus, my lens focuses but will not take a picture. In the creative modes like P, Av, etc. it works fine.
This problem seems to be wide spread. There are some advises in internet. Here is one of them (which seems to resolve the problem) from here:
I was having the same issue on a Rebel XS - 3 years old, had been working fine...
Would not take photos on AF... just beeped, clicked etc...
MF it would take photos no problem (though I was not actually focusing)
I googled the issue and found lots of suggestions on trying different settings, cleaning the contacts etc... nothing worked and I was resigned to buying a new camera or new lens
Turns out it was the outer focus ring at the end of the lens that was stuck - which makes perfect sense as it wouldn't take a photo since the focus ring wouldn't move.
Try this. Set it to MF. Hold the very end of the lens - (this is what focuses the lens - the larger grip is the zoom) - give it a gentle twist to see if it unsticks.
If it does unstick, put it back to AF and try taking a picture.
Voila! No reason to spend any $$ at a camera repair shop or buying a new camera or lens! (though I have a feeling many camera repair shops have made a killing by just twisting the focus ring free!)
P.S. I find this in internet and never test, so be warned