02-07-2017 02:19 PM
02-07-2017 02:58 PM
Maybe you set mirror lockup.
Switch to "P" mode and clear all custom functions and reset camera settings.
02-07-2017 04:28 PM
The most common problem with not being able to take a photo in non-auto modes has to do with focusing. When the camera can't focus it won't take a picture.
Live view uses a different method of focusing therefore you can focus there and camera takes a picture. In auto mode, the camera ignores your custom functions so you can still focus with the shutter button and take picture. This tells me that somehow you have set the option to disable focusing when the shutter button is half pressed. Try to press the * button to see if you can focus then take a picture. Try clearing the custom functions or set C.Fn-6 to 0.