On a desktop Mac, Bluetooth carries the keyboard, mouse and trackpad, so a Bluetooth fault can leave you unable to click anything. Apple's Magic accessory article gives the order: check the accessory's switch (a green stripe shows on Magic Keyboard, Mouse and Trackpad when on), make sure Bluetooth is on in System Settings, restart if it will not turn on, and re-pair by connecting the accessory to the Mac with its cable for a minute. If you have no working mouse, Apple says to use the keyboard: Command-Space, Bluetooth File Exchange, then Return turns Bluetooth on. Apple's tech specs list Bluetooth 5.3 and Wi-Fi 6E on the iMac, Mac mini and Mac Studio, and a metal Mac mini or Studio behind a desk can sit in a weak radio spot.
Differential
Likely causes of “Apple Mac mini M4 Bluetooth is missing, will not pair or disconnects”, and how to tell them apart
- 1
The accessory is off, flat or unpaired
What separates it The keyboard or mouse does nothing and the green stripe is missing
How to confirm Apple says to slide the switch off and on and charge it with its cable; re-pair by cable for a minute
- 2
Bluetooth is off
What separates it No wireless accessory connects after a restart because Bluetooth is off
How to confirm Apple says to check System Settings, Bluetooth, or use Command-Space and Bluetooth File Exchange from the keyboard
- 3
The Mac is in a weak radio spot
What separates it A Mac mini or Studio behind a metal desk drops the mouse
How to confirm Move the Mac or use a wired accessory; Apple links to an article on wireless interference
- 4
A headset connected but silent
What separates it The headset shows Connected in Bluetooth but stays completely silent when audio plays
How to confirm Choose it as input and output in Sound settings after confirming it is listed under Bluetooth
- 5
A stale pairing
What separates it One accessory fails while others work because of a stale pairing
How to confirm Remove it in System Settings, Bluetooth and pair it again
Before you touch a setting
Record this first — changing settings destroys the evidence
- Which accessory fails and whether it works on another Mac
- What System Settings, Bluetooth shows for the accessory
- Where the Mac sits and what is between it and the accessory
Try in this order
0 of 7 completedUse a wired keyboard and mouse
ReversibleUse a wired keyboard and mouse, by connecting a USB keyboard and mouse so that you can work through the settings.
Check the accessory switch
ReversibleSlide it off and on; Apple says the green stripe shows when it is on.
Pair over a cable
ReversibleConnect a Magic accessory to the Mac with its cable for a minute; Apple says this pairs it and charges its battery.
Check System Settings
ReversibleSystem Settings, Bluetooth. Turn it on; from the keyboard use Command-Space and Bluetooth File Exchange.
Remove and re-pair
ReversibleRemove and re pair, by removing the device and pairing it again from the start.
Move the Mac or the receiver
ReversibleKeep metal and other radios out of the line between the Mac and the accessory.
Update and restart
ReversibleUpdate and restart, by installing macOS updates and restarting the Mac before testing again, and then test again to see whether it helped.
Model-specific
What is true of this model and not of its siblings
- Bluetooth by model
- iMac 24-inch, Mac mini and Mac Studio: Bluetooth 5.3 and Wi-Fi 6E (802.11ax), per Apple's tech specs.
- Accessories
- The iMac ships with a Magic Keyboard and mouse or trackpad options; the Mac mini and Mac Studio have no keyboard or mouse, so a wired set is a useful spare.
- Repair cost
- Apple quotes a wireless repair after diagnosis. Its AppleCare+ page lists $49 to $99 for damaged screens or enclosures and $149 to $299 for other accidental damage.
- Other models this page answers
- These steps also fit the iMac 24-inch (M4), Mac Studio (M2 Max/M2 Ultra).
Stop boundary
When this stops being a self-service repair
- !If Bluetooth will not turn on after a restart, contact Apple or an Apple Authorized Service Provider
- !If no accessory pairs and Bluetooth reads as unavailable, book a service check
- !If only one accessory fails on every Mac, contact the accessory maker
Evidence ledger
Sources behind this answer
Power switches, turning Bluetooth on from the keyboard, cable pairing and wireless interference.
Checking the headset appears in the Bluetooth list and reconnecting it.
Four Thunderbolt 4 ports, up to two external displays, camera, speakers, Ethernet and weight.
M4 and M4 Pro ports, HDMI, Ethernet, display support, speaker, Wi-Fi 6E and weight.
M2 Max and M2 Ultra ports, SDXC slot, HDMI, 10Gb Ethernet, display support, speaker and weight.
AppleCare+ service fees for Mac models: $49 to $99 for damaged screens or external enclosures and $149 to $299 for other accidental damage.
Exact questions
Common questions
Why does the wireless keyboard lag on a Mac studio behind a monitor?+
A Mac mini or Studio sits low and behind metal, so the signal may be weak. Apple links to a wireless interference article; move the Mac or use a wired keyboard to confirm.
Can I use a wired keyboard and Bluetooth mouse together?+
Yes. A wired keyboard is often kept as a spare for Recovery and startup options, where a Bluetooth keyboard may not connect in time.
Which Bluetooth do the desktops have?+
Apple's tech specs list Bluetooth 5.3 for the iMac, Mac mini and Mac Studio, with Wi-Fi 6E.
Why does my keyboard not wake the Mac?+
A flat keyboard or a paired-elsewhere keyboard cannot wake it. Connect it by cable for a minute, as Apple describes, and try again.
How do I turn Bluetooth on with no mouse?+
Apple says press Command-Space, type Bluetooth File Exchange, press Return, then press Return again.
Can a monitor cause Bluetooth problems?+
Some monitors and hubs add radio noise. Apple links to an article on Wi-Fi and Bluetooth interference; move them away from the Mac and retest.
Is a wired keyboard a fix?+
It is a workaround that lets you change settings. A wired keyboard also works in startup and Recovery, where Bluetooth may not.
What does an AppleCare+ repair cost?+
Apple's Mac support page lists $49 to $99 for damaged screens or external enclosures and $149 to $299 for other accidental damage.