Iphone 6 not responding to iMac
I have restarted my Iphone 6 and it tells me to go to support.apple.com/iphone/restore I follow the directions and connect the iphone to my iMac through the usb charging cable. Nothing shows up, I have removed any lint inside the Iphone charging port and the usb port and it is still not responding to my Imac. My Imac is charging my Iphone but it will not show up on the usb on my Imac. Please help
Thanks,
iPhone 6