Look at the thumb pad on the back of your camera (see picture below, courtesy of
www.cameras.co.uk). The uppermost part of it acts not only as an up key in the menu selections, but in shooting modes controls the flash (as per the lightning symbol next to it). With the camera turned on and in automatic mode (the green camera icon on the mode selector dial) just press the flash button and look at the screen. Eventually you'll get an icon of a lightning flash behind a red circle with a bar across it, this disables the flash.
Note that if you have any of the other shooting modes selected then the flash may still operate as in those modes everything is pre-selected by the camera with no or few override options.
I hope this fixes your problem, please take a moment to rate my free answer.
×