Desktop Mac not recognizing any input devices
When I tried to start my Mac this morning, it wouldn't recognize my keyboard or mouse so I couldn't type in a password. I tried turning off then on. Now, my mac keeps flashing pictures of a mouse and keyboard showing how to turn them on; however, it still won't recognize any keyboard. I have tried the magic keyboard both bluetooth and via USB connect; still no luck.
I have a desktop Mac, but I am not sure which version.
Any ideas on how to get a mac to boot up if it won't take any inputs?
iMac Pro (2017)