The short version
- 01Work out whether these have ever paired to this device before.
- 02Put them into pairing mode properly and watch for the flashing light.
- 03Charge them fully first — low battery blocks pairing before playback.
- 04Remove the saved device and add it again rather than retrying the connection.
- 05Turn Bluetooth off, wait 10 seconds, then on again.
- 06On iPhone, check Privacy & Security lets the app use Bluetooth.
Start here
Have these headphones ever been paired to this device?
That question splits the problem cleanly, and both Microsoft and Apple organise their advice around it. If the headphones have never been paired to this device, they need to be in pairing mode — a temporary, deliberately entered state, not just switched on — and nothing will find them until they are. If they have been paired before and will not reconnect, the saved pairing is the thing at fault: remove the device and add it again rather than trying to force a connection that has gone stale.
Applies to: Bluetooth headphones and earbuds of any brand, connecting to Windows 10 and 11, or to an iPhone or iPad. The steps are the operating system’s rather than the headphones’, because that is where this almost always goes wrong.
What happens when you try?
Bluetooth failures feel arbitrary because the interface tells you so little: a device is either in the list or it is not, and either connects or it does not. In practice there are only a handful of causes, and they divide neatly by whether this is a first pairing or a reconnection. Almost everything else — drivers, updates, troubleshooters — comes after those two, and rarely needs to be reached.
Never appears in the list at all
Is it actually in pairing mode?
Enter pairing modeAppears but will not connect
Was it paired here before?
Remove and re-addConnected yesterday, not today
Is the battery low?
Charge it fullyConnects then drops immediately
Does restarting Bluetooth help?
Restart BluetoothWorks on the phone, not the PC
Is Windows up to date?
Check the host1. Pairing mode is a state you enter, not the power switch
This is the single most common misunderstanding, and it accounts for most first-time failures. Microsoft states the requirement directly: your Bluetooth device must be in pairing mode and within range of your PC. Apple says the same in different words — if you have not paired them before, you might need to place them in discovery mode first.
Switching headphones on is not the same thing. Most headphones power on and immediately try to reconnect to whatever they were last paired with, which is precisely the opposite of advertising themselves to something new. Until they are made discoverable, a phone or PC scanning for devices has nothing to find, and the list stays empty however long you wait.
How you get there differs by product, which is why Apple’s first suggestion is to check your accessory’s instructions. The common patterns are holding the power button well past the point where it switches on, holding a dedicated Bluetooth button, or putting earbuds in their case and holding the case button. Almost all of them signal success with a flashing light or a spoken prompt.
Range matters alongside it. Microsoft’s advice is to move the device closer to your PC for a stable signal, and Apple notes that for a previously connected accessory, the accessory and device should be close to each other. Pairing is less tolerant of distance than ordinary use, so do it with the two things next to each other.
If there is no flashing light or announcement, you are probably not in pairing mode. Check the manual for the exact hold — it is rarely the obvious button press.
2. Battery stops pairing before it stops playing
Microsoft makes a point here that is easy to miss and explains a lot of apparently random behaviour: some Bluetooth devices do not enter pairing mode or maintain a connection when the battery is low.
That is not the same as a flat battery. Headphones with enough charge to switch on, show a light and play for a while may still have too little to complete a pairing or hold a connection. The result looks like an intermittent fault rather than a power problem, because everything appears to be working.
Microsoft’s instruction is to charge the device fully, turn it off and back on, and attempt pairing again. Apple’s version is to make sure the accessory is on and fully charged or connected to power, and, if it uses replaceable batteries, to see whether they need replacing.
One practical addition that follows from this: where the headphones can run while charging, pair them with the cable plugged in. It removes battery level as a variable for the whole of the attempt, which is worth doing once rather than wondering about it repeatedly.
3. When it is in the list but will not connect
A device that appears in the list and refuses to connect is a different fault from one that never appears. Here the saved pairing itself is usually the problem, and both vendors give the same remedy: delete it and start again.
On Windows, Microsoft’s steps are Start, then Settings, then Bluetooth & devices, finding the device, selecting More options — the three dots — then Remove device. Then Add device, and select it from the list. On Windows 10 the equivalent path is Settings, then Devices, then Bluetooth & other devices.
On an iPhone or iPad, Apple’s instruction for an accessory that was previously connected is to unpair the accessory and then pair it again. The wording is worth noticing: unpair, not just disconnect. Disconnecting leaves the stale record that is causing the trouble.
Remember that the headphones hold their own list of paired devices too, and it is usually short — often as few as one or two. Pairing them to a new phone can silently displace your laptop, which is why a pair that works perfectly with a phone can stop connecting to the computer it used to live on. If you switch between devices often, expect to re-pair periodically.
Never paired here
Pairing mode. The device is not advertising itself yet.
Paired here before
Remove the saved device and add it again. Do not just disconnect.
4. Restarting Bluetooth, with the wait that matters
Before doing anything more involved, restart the Bluetooth radio itself. Microsoft’s procedure is to go to the Bluetooth settings, turn Bluetooth off, wait 10 seconds, and turn it back on before attempting to pair again.
The ten seconds is specified rather than decorative. Toggling straight back on frequently restores the same radio state rather than reinitialising it, which is why the version of this that people do instinctively — off, on, immediately — so often achieves nothing.
Microsoft describes this as resolving temporary radio or service issues, which is the right framing. Bluetooth on a computer is a stack of services as much as a radio, and any of them getting into a bad state produces a device that will not connect while everything looks normal.
A full restart of the computer is the next increment, and Microsoft lists it explicitly: Start, then Power, then Restart. It is worth doing before starting on drivers, because it costs two minutes and resolves a reasonable share of cases on its own.
5. When the computer or phone is the problem
If the headphones pair happily with another device, the headphones are fine and the original device is what needs attention. That test is worth running early — it takes a minute and redirects the entire investigation.
On Windows, Microsoft’s first suggestion for both Windows 10 and 11 is the automated Bluetooth troubleshooter in the Get Help app, which runs diagnostics and attempts the fix itself. It is a reasonable first move precisely because it is automatic.
Windows updates are the next item, and they matter more than they sound: Microsoft lists checking Start, then Settings, then Windows Update, and installing what is available, because Bluetooth driver compatibility arrives that way. A machine several months behind on updates is a plausible cause rather than a long shot.
Microsoft also notes to make sure your PC actually supports Bluetooth, which is worth confirming on a desktop. Many desktop machines have no Bluetooth radio at all unless one was added, and no amount of troubleshooting will conjure one.
6. The permission check nobody thinks of, and what to record
Apple raises something that has no Windows equivalent and catches people out. If there is an app you use with the Bluetooth accessory, go to Settings, tap Privacy & Security, then Bluetooth, and make sure Bluetooth is turned on for that app.
This produces a confusing symptom: the headphones connect perfectly at system level, show as connected, and still do not work with the one app you bought them for. That is a permission, not a connection, and no amount of re-pairing will address it.
It is most common with companion apps — the manufacturer’s own app for firmware updates, equaliser settings or earbud controls — where a permission prompt was dismissed during setup months ago and never revisited.
If you get to the end without success, record what you know before contacting anyone: whether the headphones pair with a different device, whether they have ever paired with this one, whether they were fully charged, whether the device appears in the list at all, and whether removing and re-adding changed anything. Those five answers separate a headphone fault from a pairing-mode misunderstanding from a stale pairing from a problem with the computer.
Frequently asked questions
Why do my Bluetooth headphones not show up at all?
Almost always because they are not in pairing mode. Microsoft requires the device to be in pairing mode and in range; Apple calls it discovery mode. Switching headphones on is not the same — most immediately try to reconnect to their last device instead of advertising themselves.
How do I put headphones into pairing mode?
It differs by product, which is why Apple’s first step is to check the accessory’s instructions. The usual patterns are holding the power button well past switch-on, holding a dedicated Bluetooth button, or holding the button on an earbud case. A flashing light or spoken prompt confirms it.
Can a low battery stop Bluetooth pairing?
Yes, and earlier than you would expect. Microsoft notes that some devices will not enter pairing mode or maintain a connection when the battery is low — even while they have enough charge to switch on and play. Charge fully, power cycle, and try again.
My headphones are listed but will not connect. What now?
Remove the saved pairing and add the device again rather than retrying. On Windows that is Settings, Bluetooth & devices, More options, Remove device, then Add device. On iPhone, Apple says to unpair — not merely disconnect, which leaves the stale record in place.
Why did my headphones stop connecting to my laptop?
Often because they were paired to something else since. Headphones store their own short list of paired devices, sometimes only one or two, so pairing to a new phone can silently displace the laptop. Re-pair them to the laptop; expect to repeat this if you switch often.
My headphones connect but one app cannot use them. Why?
On an iPhone or iPad that is a permission rather than a connection. Apple’s instruction is Settings, Privacy & Security, Bluetooth, and make sure Bluetooth is enabled for that app. It is common with manufacturers’ companion apps where the prompt was dismissed during setup.
Sources and review notes
Checked on . Compiled by Glitchary from Microsoft’s guidance on troubleshooting Bluetooth not connecting in Windows and Apple’s article on a Bluetooth accessory that will not connect to an iPhone or iPad. The pairing mode requirement, the low battery behaviour, the remove-and-re-add steps, the 10-second Bluetooth restart, the troubleshooter and the app permission check are theirs. The first-pairing versus reconnection framing, the note about headphones’ own limited pairing lists, and the advice to pair while charging are editorial. Entering pairing mode differs by product — check the instructions for yours. Glitchary is independent of Microsoft and Apple.