Is Bluetooth not working on your Mac with High Sierra? Here are some things you can try, from simple to (fairly) complex…

Bluetooth isn’t the most stable technology around. It’s liable to disconnect randomly, can be easily interrupted by solid objects, and is supported by hundreds of devices with don’t always talk to one another. On top of all these (potential) issues, macOS High Sierra has its problems with Bluetooth technology. If you’ve encountered any problems with Bluetooth recently, then here are the most common fixes, from easiest to most complicated:

Easy fix 1: Check the battery levels of your Bluetooth devices.

If they’re running low, then you might be encountering intermittent connection problems. You can do this by clicking on the Bluetooth icon in the menu bar, then selecting your devices.

 

Easy fix 2: Check for Software Updates

Make sure you’re running the latest version of macOS. You can look for updates by opening the App Store, then clicking the Updates tab.

 

Easy fix 3: Disable Handoff

Handoff is a really clever feature which lets you start one thing on your iPhone or iPad (such as reading a web page), then continue it on your Mac. However, some people have found that it causes issues with their Bluetooth device. To disable Handoff:

  1. Open the System Preferences app, then click General.
  2. Uncheck Allow Handoff between this Mac and your iCloud devices.

 

Easy fix 4: Unpair your Bluetooth devices, then reconnect them.

You can do this via the System Preferences > Bluetooth. To disconnect a device, hover the cursor over the Bluetooth device, then click the small X which appears. To reconnect, wait for the device to appear at the top of the Bluetooth panel, select it then choose Connect.

 

Not so easy fix 1: Reset the Bluetooth module

Restarting the Bluetooth module on your Mac is a good way to fix potential problems, and it’s fairly easy to do. First, make sure the Bluetooth icon is visible in the menu bar. If it is not, open System Preferences, click on Bluetooth, then tick Show Bluetooth in menu bar at the bottom of the dialog.

Next, hold down the Shift and Option keys on your keyboard and click on the Bluetooth icon in your Mac’s menu bar. Select Debug > Reset the Bluetooth module, and it will reset in the background.

 

Not so easy fix 2: Delete your Bluetooth Preferences.

You can try manually deleting the Bluetooth preferences saved for your device. To do this:

Navigate to ~/Library/Preferences (you can use the Command+Shift+G keyboard shortcut in the Finder to open the Go To window)
Delete any preference files associated with Bluetooth. Here are the most common files:

  • com.apple.driver.AppleBluetoothMultitouch.trackpad.plist
  • com.apple.driver.AppleBluetoothMultitouch.mouse.plist
  • com.apple.AppleMultitouchTrackpad.plist
  • com.apple.preference.trackpad.plist

You can use the Search field to find any Bluetooth preferences. Once you have found them drag them to the Trash to delete them.

If none of the above works…

Then something weird is definitely happening with your Mac, and your best option is to get it examined at the local Apple Genius Bar. The Genius Bar is a technical support service in every Apple Store where you can get help to solve the problem or receive a replacement device. The easiest way to book a Genius Bar appointment is via the Apple Store website. The URL changes depending on your location, but Google search “Book a Genius Bar appointment” and the first result will take you to the right page. From the website you can select your nearest store and choose a suitable time and date – right down to the exact 10 minutes that suit your needs.

 

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