也有人用以下的方法解決了問題: 1. Turn off bluetooth. 2. Disconnect all peripherals from your computer. 3. Open System Preferences. In the “Energy Saver” preference, de-select “Wake for network access” (no check, and leave it that way). 4. Open the finder. Select the “Go” menu. Select “computer.” Select “Macintosh HD.” Go the the “Library” folder. Go to the “Preferences” folder. Find the preference file “com.apple.bluetooth.plist.” 5. Rename “com.apple.bluetooth.plist” as “com.apple.bluetooth.plist.old” (i.e. add “.old”). Eventually, if this solution works for you, you can delete this “old” preference file. 6. Restart your computer (this will create a new “com.apple.bluetooth.plist” preference file). 7. Turn bluetooth back on.