i had connect my iphone with usb to the pc,after i clicked on the itunes there's no "Device" show on the left side as usual. may i know whats the problem?
I suspect you're using the new iTunes which does not display the device there any longer.
If you want to see it there, do "View > Show Sidebar" in iTunes' menu. Otherwise, you can see your iPhone in a box on the upper right of the screen.
everytime i connect my iphone with the usb to the itune, it show me this " this iphone cannot be used because the Apple Mobile Device Service is not started."
Here's how to start the Apple Mobile Device Service on a Windows computer:
How to restart the Apple Mobile Device Service (AMDS) on Windows
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