neither bluetooth nor usb Port working at iMac startup
Hi
I had shutdown my IMac when my Bluetooth keyboard and mouse were frozen .
now after few hours when I started my IMac , I see images of mouse and keyboard on the screen . I can not login on iMac . I tried to attach USB ( wired mouse ) but IMac is not detecting that too .
i tried to use external bootable usb to reinstall Os but IMac did not read the UsB
any suggestion ?