Q: i am not able to backup my iphone . it says like the iphone is not connected

Hi ammie0021,

If I understand correctly you are unable to make a backup of your phone due to this error message. I would like to recommend you use the troubleshooting in the following article, named:

If you can't make an iTunes backup of your iPhone, iPad, or iPod touch

If the issue persits, I would next troubleshoot the USB connection between the computer and the phone:

Resolve USB-related alerts in iTunes

Thank you for using Apple Support Communities.

Cheers,

Sterling