How to turn off the flash of Canon 600d camera?

The reason why Canon 600d flash can't be turned on and its solution:

The first confirmation mode, scenery, sports, no flashing, short film, these four modes can not use flash. In P/AV/TV/M mode, you can press the button to pop up the flash. In other modes, the camera will automatically pop up the flash as needed.

The second confirmation menu option, the flash must be set to enable in the flash control;

Third, please try to determine the P/AV/TV/M mode without external flash or obstacles on the hot shoes with external flash: press the shutter button for focus metering, and then press the flash button to see if the internal flash can pop up.

Setting method of external flash:

Turn on the flash in full automatic mode. At this time, the photographer does not need to turn on the camera, and the camera will automatically jump up and flash when the flash is needed.

Open in p, a, s and m modes. When you need to use the flash, press the button marked with flash on the left side of the camera, and the built-in flash will pop up. When the shutter button is fully pressed, the flash will flash.

Open in CA creative automatic mode. Press the q key to set it. The specific operation is that the speed control screen will appear after pressing the Q key. Use the up and down keys to select the flash marking option, and then select the flash. You can select Auto Flash or Flash On or Flash Off.