You slip both AirPods 4 into your ears, start a podcast or a song, and only one side actually plays while the other sits there completely silent. It is jarring, especially on a pair built around Active Noise Cancellation, where a dead side ruins the whole point of wearing them. The good news is that a silent AirPod is almost always something you can fix yourself in a few minutes, and the most common cause is simply a side that did not charge or seat properly.
Before working through the fixes, run a quick headphone test in your browser. It plays the left and right sides separately, so you can tell right away whether one channel is actually dead.
The fixes below are ordered the way Apple's own support guidance handles this, with the easiest and safest checks first, a reset in the middle, and the official forget-and-re-pair plus service path last. Work through them in order and stop as soon as both sides come back to life. These steps are specific to the AirPods 4 with Active Noise Cancellation, which use an open-ear design with no removable ear tips, so anything that relies on swapping or seating tips simply does not apply to this model.
Start with a charge and a re-seat of the quiet side
A dead or non-seating AirPod is the single most common reason one side goes silent, so this is Apple's first official step before any reset. Place both AirPods in the charging case and let them charge for 30 seconds.
- 1.Put both AirPods into the charging case.
- 2.Let them charge for at least 30 seconds.
- 3.Open the case lid near your iPhone or iPad.
- 4.Check that each AirPod shows it is charging.
If the silent side never registers as charging, it may not be sitting correctly in its slot. Take it out, wipe the contacts area, and reseat it firmly before checking again.
Isolate the silent AirPod on its own
Before you assume the hardware is faulty, find out whether the problem is the AirPod itself or how stereo audio is being routed between the two. You can do this by listening with only the problem side.
- 1.Put the AirPod that isn't working in the appropriate ear.
- 2.Leave the other AirPod in the case with the lid closed.
- 3.Play some audio and listen for sound.
If the previously silent side now plays on its own, the AirPod is fine and the trouble is likely in balance or routing. Put both back in the case, charge for 30 seconds, reopen near your device, and test them together again.
Re-center the left and right balance slider
If one side is silent or noticeably quieter than the other, an off-center audio balance setting can be the entire cause. This is an easy setting to nudge by accident, and it makes a perfectly healthy AirPod sound dead.
On your iPhone or iPad, go to Settings > Accessibility > Audio/Visual > Balance. Make sure the L/R balance is set in the middle. Dragging the slider back to center should immediately restore sound to both sides if this was the issue.
Clean the speaker and microphone mesh
If one AirPod is quiet, or you lose bass and get more background noise with ANC turned on, debris in the openings can be to blame. Inspect the microphone and speaker mesh on each AirPod and clean it following Apple's cleaning guidance.
Because AirPods 4 have no removable ear tips, cleaning these mesh openings is the relevant physical step for this model. There is nothing to pop off and rinse, so gentle, careful cleaning of the mesh is what restores clear sound and proper noise cancellation.
Match the listening mode on both sides and turn off Adaptive Audio while you test
The AirPods 4 with Active Noise Cancellation offer four listening modes, which are Active Noise Cancellation, Transparency, Adaptive Audio, and Off. If the two AirPods are not behaving as a pair, set both to the same mode and confirm what you are hearing.
You can press and hold the stem on either AirPod until you hear a chime to cycle modes. Alternatively, on iPhone or iPad, open Control Center, touch and hold the volume control, tap the listening-mode button at the bottom left, then choose a mode. Set it to Active Noise Cancellation for this test.
Apple notes that when you are troubleshooting ANC, you should make sure Adaptive Audio isn't enabled. Adaptive Audio automatically cancels or allows noise around you, so it can mask what ANC is doing. Switching the listening mode to Active Noise Cancellation, as described above, takes Adaptive Audio out of the equation while you diagnose the silent side.
Keep the external microphones clear and remember this is an open-fit design
For AirPods 4 with ANC, avoid blocking or covering the external microphones, because noise cancellation relies on them. If a finger, hair, or a hat is sitting over a mic, the affected side can sound off even when nothing is broken.
Unlike AirPods Pro, the AirPods 4 use an open-ear design with no ear tips, so there is no Ear Tip Fit Test or Acoustic Seal Test to run on this model. ANC effectiveness here depends on a natural fit and clear microphones rather than a sealed tip, which is why keeping those external mics uncovered matters so much.
Update your iPhone or iPad and the AirPods firmware
Out-of-date software on either side can cause odd behavior, so make sure everything is current. On the paired device, install the latest version of iOS or iPadOS first.
There is no manual button to force an AirPods firmware update, so you encourage it instead. Connect your device to Wi-Fi with Bluetooth on, plug the charging case into power, put both AirPods in the case, close the lid, keep them in range, and wait at least 30 minutes for the firmware to update.
To check which version you are on afterward, go to Settings > Bluetooth > tap the Info button next to your AirPods > scroll to the About section to find the Firmware Version.
Reset the AirPods 4 the right way
If the silent side is still not playing, reset the AirPods. Resetting removes the current pairing and your personalized settings, so you will need to set the AirPods up again afterward. Note that this model does not use the older 15-second case-button hold that earlier AirPods and AirPods Pro models rely on, and using that method here will not work.
- 1.Put your AirPods in their charging case, close the lid, and wait 30 seconds.
- 2.Open the lid and double-tap the front of the case to start the reset.
- 3.Continue double-tapping the front of the case until the status light flashes amber, then flashes white.
- 4.Follow the steps on your device's screen to reconnect.
The light sequence is your success signal, since amber then white means the reset took. Let the light advance rather than counting taps.
Forget the device, re-pair, and contact Apple if a side is still silent
If a reset alone did not bring both sides back, remove the AirPods from your device entirely and set them up fresh. Forgetting the device clears the pairing and personalized settings from that device, so you will re-pair from scratch afterward. On iPhone or iPad, go to Settings > Bluetooth > tap the Info (i) button next to your AirPods > Forget This Device > Forget Device.
Then put the AirPods in the case, open the lid near the device, and follow the onscreen setup steps to re-pair. This rebuilds the connection from scratch and clears out any pairing glitch that survived the reset.
If one AirPod still doesn't work after resetting, Apple says you might need service. At that point, contact Apple Support, an Apple Store, or an Apple Authorized Service Provider to have the AirPod looked at.
Frequently Asked Questions
Why is only one of my AirPods 4 working?
The most common reason is that the silent side did not charge or seat properly in the case, which is why Apple's first official step is to charge both for 30 seconds and confirm each one shows it is charging. An off-center left and right balance setting can also silence one side even when the hardware is fine.
How do I reset AirPods 4 with ANC?
Put your AirPods in their charging case, close the lid, and wait 30 seconds. Open the lid and double-tap the front of the case, continuing to double-tap until the status light flashes amber, then flashes white, then follow the onscreen steps to reconnect. Resetting removes the current pairing and personalized settings, so you will set the AirPods up again afterward. Do not use the older 15-second case-button hold, which is for earlier AirPods and AirPods Pro models.
Is there an Ear Tip Fit Test for AirPods 4?
No. The AirPods 4 with Active Noise Cancellation use an open-ear design with no removable ear tips, so there is no Ear Tip Fit Test or Acoustic Seal Test on this model, and those are exclusive to the AirPods Pro line. For this model, noise cancellation depends on a natural fit and clear external microphones.
How do I update the firmware on my AirPods 4?
There is no manual update button. Connect your iPhone or iPad to Wi-Fi with Bluetooth on, plug the charging case into power, put both AirPods in the case, close the lid, keep them in range, and wait at least 30 minutes. You can confirm the version under Settings > Bluetooth > Info button > About > Firmware Version.
What should I do if one AirPod is still silent after a reset?
Forget the device under Settings > Bluetooth > Info (i) button > Forget This Device > Forget Device, then re-pair by putting the AirPods in the case and following the onscreen setup. If a side still does not work after that, Apple says you might need service, so contact Apple Support, an Apple Store, or an Apple Authorized Service Provider.
