My Mac won't recognise usb connections. The keyboard and optical mouse work. But if I attach iPhone or external cd drive- it does not recognise it at all, and does not show in finder. I've switched off and on, swapped ports and cables and nothing!!
My Mac won't recognise usb connections. The keyboard and optical mouse work. But if I attach my iPhone or an external cd drive- it does not recognise it at all, and does not show in finder.
I've switched off and on, swapped ports and cables and nothing!!
Before going for a service thought I'd check with you all
MacOS HighSierra 10.13.6
iMac Retina 5K 27inch 2017. Core i5
iMac 27″, macOS 10.13
