a mouse don’t connect just yet – even if that port and device was working previously. Once your Mac has had a decent amount of time to rest go ahead and plug your power supply back in – but any devices that plug into the USB port i.e. Now unplug the power supply from both the Mac and the wall socket and just let your Mac chill for about five or so minutes. Start by shutting off the Mac then unplug any devices that are connected to the Mac whether they are working or not. On occasion a Mac can just be tired – as silly as it may sound – and needs a fresh start much like a speed nap for us so a nice reboot will do the trick. You may want to restart after updating for a clean slate. After doing so plug your device into the USB port and see if the problem was resolved.
Simply navigate up to the Apple icon at the top left of your computer screen and go ahead and check for any software updates. Sometimes our Mac’s are not set to auto-update or they may skip one or two updates which can result in USB port failure. There are a few ways to repair this problem and hopefully they’ll work for you so you don’t have to ship your Mac off to be taken apart. When your Mac’s USB ports aren’t detecting your devices this can become a very big problem – thumb drives, external hard drives and optical drives are all unusable among many other devices.
