It’s more reliable, more energy efficient, has better range, and various other benefits. If your Mac currently only supports Bluetooth 2.0 or 3.0, the added bonus is you’ll get upgraded to Bluetooth 4.0. But in many cases it might be a better option to just install a new Bluetooth adapter. I’ve written a few articles on ways to try and fix these issues. So there’s no way to try turning it off and on. The Bluetooth options icon completely vanishes from System Preferences. Hovering the mouse over the Bluetooth icon in the menu bar will say, “Bluetooth: Not Available”. My MacBookPro periodically loses Bluetooth entirely. It can also occur when you have numerous USB devices plugged in. Sometimes this occurs after the computer comes out of sleep, or when connecting/disconnecting a Bluetooth device. It’s not uncommon for the internal Bluetooth on MacBooks (and even Mac desktops) to have issues. On this page I’ve listed all those on that are known to work on Mac.
Need a Bluetooth 4.0 adapter for an older Mac? Look no further.
