Miya Pearson
If you want to wake up your iMac from sleep mode using a Bluetooth keyboard, there are several methods you can try. Firstly, check if your iMac supports Bluetooth wake-up by opening System Preferences, clicking Bluetooth, then Advanced, and looking for the Allow Bluetooth devices to wake this computer option. If this option is dimmed, your iMac may not support this feature, but you can try connecting a USB device and see if that wakes up your iMac. Another solution is to download and install the latest Bluetooth Firmware Update. Alternatively, you can try using a Terminal command to enable the feature, as Apple has removed the option from the System Preferences in macOS Monterey (12.2.1).
| Characteristics | Values |
|---|---|
| Operating System | macOS Monterey (12.2.1) or later |
| Keyboard Type | Bluetooth wireless keyboard |
| Wake-Up Method | Press a key on the keyboard |
| Settings | Enable "Allow Bluetooth devices to wake this computer" in System Preferences > Bluetooth |
| Troubleshooting | Ensure your Mac supports Bluetooth wake-from-sleep; try updating Bluetooth Firmware |
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What You'll Learn
Ensure your Mac supports Bluetooth wake-from-sleep
To ensure your Mac supports Bluetooth wake-from-sleep, you need to check your system preferences.
Firstly, go to the Apple menu, then System Preferences, and click on Bluetooth. Now, click on Advanced. Here, you should see an option to "Allow Bluetooth devices to wake this computer". If you do not see this option, your Mac does not support Bluetooth wake-from-sleep.
If the option is present but dimmed, you will need to determine if your Mac supports the feature. To do this, put your Mac to sleep and then try to wake it up by connecting a wired USB device such as a USB keyboard or mouse. If the USB device wakes your Mac, but the Bluetooth option is still dimmed, you should check that your Mac has Mac OS X 10.2.8 or later installed. You should also ensure that your Mac has either an internal Bluetooth module or a connected D-Link DBT-120 USB-to-Bluetooth adapter, revision B2 or later. This feature will only work with these devices.
If your Mac still does not wake from sleep, you may need to download and install the latest Bluetooth software or firmware update.
It is worth noting that Apple has removed the "Allow Bluetooth devices to wake this computer" option in macOS Monterey (12.2.1) and later. If you are using this version of macOS, you may need to use a Terminal command or a third-party app to enable the Bluetooth wake-from-sleep feature.
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Check your Bluetooth settings
To wake your iMac from sleep mode using a Bluetooth keyboard, you need to ensure that your Mac supports the Bluetooth wake-from-sleep feature.
- Go to the Apple menu and open System Preferences.
- Click on Bluetooth.
- Click on Advanced.
- Look for the “Allow Bluetooth devices to wake this computer” option.
- If the option is available and selected, your Mac supports Bluetooth wake functionality.
- If the option is dimmed or unavailable, your Mac may not support this feature. Try connecting a USB device and see if your Mac wakes from sleep. If it does, your Mac supports the feature, but Bluetooth may need troubleshooting.
- Ensure your Bluetooth keyboard is properly paired with your Mac.
- Check your keyboard's battery to ensure it isn't the cause of the issue.
- Update your Mac to the latest version of macOS. Apple removed the "Allow Bluetooth devices to wake this computer" option in macOS Monterey 12.2.1, so older versions may still have this setting available.
- If all else fails, download and install the latest Bluetooth Firmware Update.
By following these steps, you can determine if your iMac supports the Bluetooth wake-from-sleep feature and troubleshoot any potential Bluetooth connectivity issues.
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Try a wired USB device
If you're having trouble waking your iMac from sleep mode using a Bluetooth keyboard, you can try using a wired USB device instead. Here are some steps you can take:
First, check if your iMac supports the Bluetooth wake-from-sleep feature. Go to the Apple menu, select System Preferences, then click on Bluetooth. Click on Advanced and see if the "Allow Bluetooth devices to wake this computer" option is available and dimmed. If it's not available, your iMac does not support this feature.
If your iMac does support Bluetooth wake but isn't responding to your keyboard, try connecting a wired USB keyboard or mouse to your iMac and see if pressing a key or clicking wakes it up. If the wired USB device wakes your iMac, but the Bluetooth option is still dimmed, there are a few additional steps you can try.
Ensure that your iMac is running the latest Bluetooth Firmware Update. You can download and install any available updates. Note that certain USB-to-Bluetooth adapters, like the D-Link DBT-120, are not compatible with OS X v10.6 or later.
If your iMac is not waking from sleep via USB devices, it may have entered a "deep" sleep mode after a few hours. In this case, you might need to adjust your Energy Saver parameters to prevent the system from entering this deep sleep state. You can try adjusting settings such as autopoweroffdelay, standbydelay, and displaysleep.
Additionally, if you're using a docking station with your iMac, such as the TBT3-UDZ, be aware that there have been reported issues with USB devices not being detected after waking from sleep on some macOS systems, particularly M1-based Macs. In such cases, you may need to disconnect the dock and power it off until the final step of troubleshooting.
By following these steps and trying a wired USB device, you should be able to wake your iMac from sleep mode if it doesn't respond to your Bluetooth keyboard.
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Update your Bluetooth firmware
Updating your Bluetooth firmware can help fix any Bluetooth issues you may be experiencing with your iMac.
First, check which version of the Bluetooth firmware you have by opening System Profiler and clicking on "Bluetooth" in the left column. Your firmware version will be displayed three rows below your computer's name.
Next, check if your macOS is up to date by going to the Apple menu > About This Mac > Software Update or System Preferences > General > Software Update. If there are no updates available, and your Bluetooth is still not working, you can try turning it off and on again, or unpairing and repairing your Bluetooth device.
If you are still experiencing issues, you may need to update your firmware. Firmware updates for Bluetooth devices are released by Apple to fix bugs and improve performance. You can check for updates by going to the Apple menu > System Preferences > Software Update. If there is an update available, you will be able to download and install it from here.
It is important to note that not all firmware updates are available via the Software Update feature. Some updates may require you to download and run an installer, and then run a firmware updater tool. You can usually find these on the support section of the manufacturer's website.
Additionally, if you are using AirPods with your iMac, there are specific steps you need to follow to update the firmware. Make sure your AirPods are connected via Bluetooth to your iMac, and that your iMac is connected to Wi-Fi. Then, place your AirPods in the charging case, close the lid, and wait at least 30 minutes. After this, open the lid of the charging case and reconnect your AirPods to your iMac. Check the firmware version again, and if it is still not updated, reset your AirPods and try again.
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Use a terminal command
If you want to wake your iMac from sleep using a Bluetooth keyboard, you can try using a terminal command. Here are the detailed steps you can follow:
First, open the Terminal application on your iMac. You can find it in the Utilities folder inside your Applications folder. Alternatively, you can use the Spotlight Search feature by pressing Command + Space and typing "Terminal" to find and open it.
Once the Terminal application is open, you need to input the following command:
Defaults write /Library/Preferences/com.apple.Bluetooth AllowBluetoothWake bool YES
After executing this command, press Enter to apply the changes. This command sets the preference to allow Bluetooth devices to wake your iMac from sleep.
Now, you can try to wake your iMac from sleep by pressing a key on your Bluetooth keyboard. If it doesn't work, there are a few additional steps you can take:
- Check if your iMac supports the Bluetooth wake-from-sleep feature. To do this, go to Apple menu > System Preferences, then click on Bluetooth. Click on Advanced and see if the "Allow Bluetooth devices to wake this computer" option is available. If it's dimmed, your iMac may not support this feature.
- Ensure that your iMac has the latest Bluetooth Firmware Update installed. You can download and install any available updates from the official Apple website or through the Software Update feature in System Preferences.
- Verify that your iMac has Mac OS X 10.2.8 or a later version installed. This is a requirement for the Bluetooth wake-from-sleep feature to work.
- If the above steps don't work, you can try using a wired USB device, such as a USB keyboard or mouse, to wake your iMac from sleep. Connect the USB device and then try to wake your iMac. If it works with a wired connection, it indicates that the issue might be related to Bluetooth settings or connectivity.
By following these steps and using the provided terminal command, you should be able to wake your iMac from sleep using a Bluetooth keyboard.
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Frequently asked questions
If your Mac supports the Bluetooth wake-from-sleep feature, you can set your Mac to wake when you press a key. Go to the Apple menu, click on System Preferences, then click on Bluetooth and Advanced. Select "Allow Bluetooth devices to wake this computer."
If the "Allow Bluetooth devices to wake this computer" option is dimmed, your Mac does not support this feature. Try connecting a wired USB device and see if that wakes your iMac. If it does, your Mac supports the feature, and you may need to update your software or install the latest Bluetooth Firmware Update.
If your iMac is asleep, you will need to open the lid, press the power button, then close the lid to wake your iMac.
Apple has removed the "Allow Bluetooth devices to wake this computer" option in macOS Monterey (12.2.1). However, you can use a Terminal command to disable this setting.
