The mode shown in the status screen is locked if:

- The switch on the lens is set to *M* which forces the lens in *Manual Focus* mode.
- The lens is a *Manual-Focus Only* lens such as Samyang and some Zeiss lenses.
- The lens is damaged or improperly mounted so that the AF contacts do not work.
- The attached AF lens has no AF motor built-in and needs an AF from the camera which the Nikon D3300 does not. This is the case for AF lenses, while AF-S and AF-P lenses have a built-in focus motor.