Quick Answer: If headphones aren’t working on your iPhone, check where the audio is actually going first: open Control Center, press and hold the audio card, and see which output is selected — iOS often keeps routing sound to a remembered Bluetooth device or AirPlay speaker. For wired headphones, turn Bluetooth off temporarily (it can hijack the route), then clean the charging/headphone port with a wooden toothpick — lint is the number-one cause. For wireless, tap the ⓘ next to the device → Forget This Device and pair again.
Plug in, and… nothing. Or the phone plays through its speaker as if the headphones weren’t there. Or Bluetooth proudly says “Connected” while delivering total silence. Or sound comes from one side only.
Nearly all of these come down to one question: where is the iPhone sending the audio? iOS juggles a speaker, a wired port, Bluetooth devices, and AirPlay targets — and when it picks the wrong one, headphones look broken while they’re perfectly fine. The ten fixes below start with routing, then cover the physical and settings-level causes for both wired and wireless.
Find Your Situation
| Symptom | Most Likely Cause | Jump to Fix |
|---|---|---|
| Bluetooth says “Connected” but no sound | Audio routed elsewhere | Fix 1 & 6 |
| Wired headphones ignored entirely | Port lint or Bluetooth hijacking | Fix 2 & 3 |
| Sound in one ear only | Audio balance setting or cable | Fix 5 |
| Volume seems capped or quiet | Headphone Safety / volume limit | Fix 4 |
| Phone thinks headphones are plugged in | Debris tricking the port sensor | Fix 3 |
| Speaker fails during calls too | See our iPhone call speaker guide | — |
How to Fix Headphones Not Working on iPhone
Fix 1: Check Where the Audio Is Going
Start here — it explains the majority of “connected but silent” cases.
- Start playing something, then open Control Center.
- Press and hold the audio card (top right) and tap the AirPlay/output icon.
- Select your headphones from the list. If a HomePod, TV, car, or another Bluetooth device is selected, that’s exactly where your music has been going.
Fix 2: For Wired — Turn Bluetooth Off Temporarily
A quiet iOS behaviour worth knowing: a remembered Bluetooth device can grab the audio route even when you’re not actively using it, leaving wired headphones silent.
- Settings → Bluetooth → toggle it off.
- Plug the wired headphones in and test.
- Sound returns? A paired device was hijacking the route — forget it (Fix 6) or keep Bluetooth off while using wired headphones.
Fix 3: Clean the Port — Lint Is the #1 Physical Cause
Compacted pocket lint stops the connector seating fully, and can even trick the phone into thinking headphones are permanently plugged in.
- Power off the iPhone.
- Use a wooden toothpick or plastic pick — never metal — and gently scrape along the port’s inner walls. Expect a surprising amount of grey fluff.
- Finish with a short puff of compressed air, then push the connector fully home.
- Stuck in “headphone mode” with no headphones attached? Plug and unplug the headphones 5–10 times in quick succession to reset the sensor.
Fix 4: Check Volume Limits and Headphone Safety
iOS has protective settings that make headphones sound quiet or muted — and they’re easy to trip accidentally.
- Settings → Sounds & Haptics → Headphone Safety — check Reduce Loud Sounds and where its slider sits.
- Settings → Sounds & Haptics → check any volume limit that’s enabled.
- Also check Screen Time → Content & Privacy Restrictions → Volume Limit, which can be locked there.
- Raise the volume with the buttons while audio is actually playing — otherwise you’re adjusting ringer volume instead.
Fix 5: Fix the Audio Balance (Sound in One Ear)
An accessibility slider that drifts to one side is the classic cause of one-sided audio — people replace perfectly good headphones over this.
- Settings → Accessibility → Audio & Visual.
- Set the Balance (L/R) slider dead centre.
- Also turn Mono Audio on temporarily to test — if both ears then work, the problem was balance, not hardware.
Fix 6: For Wireless — Forget the Device and Re-Pair
Bluetooth pairings corrupt, and the connection then reports success while carrying no audio.
- Settings → Bluetooth → tap the ⓘ next to your headphones → Forget This Device.
- Restart the iPhone, put the headphones in pairing mode, and connect fresh.
- AirPods: with the case open, hold the setup button until the light flashes amber then white to reset them.
- Charge the headphones — low battery causes connected-but-silent behaviour on plenty of models.
Fix 7: Restart the iPhone
The audio subsystem can hang like anything else, and a restart re-initializes it.
- Power off fully, wait 30 seconds, power on.
- Test with the headphones before changing anything else.
Fix 8: Test the Headphones Elsewhere (and Other Headphones Here)
Two minutes that split the problem definitively.
- Your headphones on another device: silent there too → the headphones are the fault, not the iPhone.
- Different headphones on your iPhone: also silent → the iPhone’s port, Bluetooth, or settings are at fault.
- For wired sets, wiggle-test the cable near the connector while audio plays — crackling or cutting out means a failing cable.
Fix 9: Use Certified Accessories
Uncertified adapters and cheap Lightning/USB-C headphones fail iOS’s authentication and go silent, often after an update.
- Look for MFi (Made for iPhone) certification on adapters and wired headphones.
- If you see “This accessory may not be supported”, that’s the authentication failing — a genuine or certified replacement is the fix.
Fix 10: Update iOS, Then Reset Settings
- Settings → General → Software Update — Apple has patched audio-routing bugs in point releases more than once.
- Still broken? Settings → General → Transfer or Reset iPhone → Reset → Reset All Settings — it restores every setting (including hidden audio ones) without deleting your data.
- For Bluetooth-specific trouble, Reset Network Settings clears all pairings and is often enough on its own.
Still No Sound?
- Test the speaker too. If the iPhone’s own speaker is also failing, this isn’t a headphone problem — our iPhone call speaker guide covers the audio hardware side.
- Water exposure changes the picture — a port that got wet may need days to fully dry, and liquid damage to the audio circuit is a service matter. Don’t force a connector into a damp port.
- Apple diagnostics can test the audio hardware directly; if the port is physically damaged or the audio IC has failed, that’s a repair, not a setting.
- Bluetooth dropping constantly rather than silent? The pairing side has its own fix list — our Bluetooth keeps disconnecting guide shares most of the causes across platforms.
More iPhone fixes on MozPK
- iPhone call speaker not working
- iPhone voice-to-text not working
- iPhone 17 not charging
- iPhone Bluetooth not working
- Bluetooth keeps disconnecting
- iPhone storage full but nothing to delete
Frequently Asked Questions
Why do my headphones say connected but produce no sound?
The audio is being routed somewhere else. Open Control Center, press and hold the audio card, and select your headphones from the output list — a remembered Bluetooth device or AirPlay target is usually holding the route.
Why does my iPhone ignore wired headphones?
Two usual causes: lint packed into the port preventing full contact, or Bluetooth quietly claiming the audio route. Turn Bluetooth off to test, then clean the port with a wooden toothpick while the phone is powered off.
Why is sound coming from only one earbud?
Check Settings → Accessibility → Audio & Visual and centre the L/R balance slider — a drifted slider mimics broken headphones exactly. If it’s centred and the problem persists, test the headphones on another device.
My iPhone thinks headphones are plugged in when they’re not — why?
Debris in the port is tricking the sensor. Clean the port carefully, then plug and unplug the headphones 5–10 times in quick succession to reset the detection.
Will resetting all settings delete my data?
No — Reset All Settings restores settings to defaults (including audio and accessibility options) while photos, messages, and apps stay untouched. You will need to re-enter Wi-Fi passwords.