where is thr control key on the iphone 4
Where is the Control Key located on the IPhone 4?
Control Key? Are you expecting a control key like on a computer keyboard? There is no such thing on an iPhone.
There is a home button on the bottom center. There is a power on/off button on the top right.
If that doesn't answer your question, what are you trying to do? There's probably a different way on the iPhone.