I have a mid-2012 model and both of my USB ports have failed. Originally the right side port quite printing ti a printer th]e previously functioned so I used the left side port. Now neither
port will function using this same printer or a thumb drive that also worked with either port. There no recognition of any kind when a device is plugged into these ports. Apple diagnostics reports no problems. Any thoughts of what action I should pursue to resolve this problem would be appreciated.
port will function using this same printer or a thumb drive that also worked with either port. There no recognition of any kind when a device is plugged into these ports. Apple diagnostics reports no problems. Any thoughts of what action I should pursue to resolve this problem would be appreciated.