Faced with the following problems: 1 when turned on, the screen does not turn on - you need to press the INFO button, it has three screen modes. 2 on the mode with shutter speed and aperture, the mirror rises when the button is pressed and falls when you press it again - in the menu you need to disable mirror blocking (for each mode it is done separately) 3 blue pictures - there was a fluorescent lamp and I shot with a flash (I liked rather unusual photos ) 4 user modes C1 C2 C3 are not saved - MENU button - registration - choose which mode to save.