My iphone4 screen looks 3D how do I make it go back to original.

[iMore Question]

I don't know how to switch back to original screen.

 

[Just_Me_D]

I'm going to assume you mean it's zoomed in. If so, tap on the screen with three fingers.

 

[Rob Phillips]

Welcome to iMore! Sounds like you might have perspective turned on for your wallpaper. When you go to set your wallpaper, make sure you select "still". This will get rid of the 3D effect.