iPhone sound not working? Start with the three free checks

The three free checks, in order

Do these before anything else. They cost nothing, they take about a minute between them, and they explain most of the phones that arrive at a repair counter with no sound. We would far rather you found the answer at your kitchen table than paid someone to find it for you.

1. The silent switch, or the Action Button

   On most iPhones this is the small sliding switch above the volume buttons. If you can see orange in the gap, the phone is muted and everything else on this page is beside the point. The catch is that on the iPhone 15 Pro and Pro Max, and on every iPhone 16, that switch is gone — replaced by the Action Button, which can be assigned to the camera, the torch, a shortcut or anything else. A phone can therefore be silent with no orange to look at and no obvious control to slide. Open Settings, then Action Button, and see what yours is actually set to do.

2. Focus and Do Not Disturb

   Swipe down from the top-right corner for Control Centre and look for a crescent moon or a named Focus such as Sleep, Work or Driving. A Focus set up months ago and forgotten is one of the most common explanations for a phone that goes quiet at the same time every evening, or that rings for some people and not others. Check Settings, then Focus, and look at the schedules as well as what is switched on right now.

3. Bluetooth

   Your iPhone will happily keep sending audio to a speaker in the next room, a car sitting in the carpark downstairs, a TV, or a set of earbuds buried in a bag. From the phone’s point of view nothing is wrong — the sound is playing perfectly, just not where you are. Open Control Centre, press and hold the audio card, and look at where the sound is being sent. If the phone names another device, you have your answer. Turning Bluetooth off for a moment is the fastest way to prove it.

One test that separates settings from hardware

There is a single check that tells you which side of the line you are on, and it takes five seconds.

Play something — a video, a voice note, anything. While it is playing, press the volume up button on the side of the phone and watch the little indicator that appears on screen. If it says Ringer, the phone does not believe any media is playing, which points at software, routing or the silent switch. If the indicator behaves normally and shows a speaker icon, the phone is doing everything right and sending audio to the speaker — and if you still hear nothing, the fault is physical.

One more free check before you go anywhere: open Settings, then Sounds & Haptics, and drag the Ringtone and Alerts slider up and down. That slider plays a tone through the loudspeaker as you move it, independent of whatever app you were using. Silence there is a strong hardware signal. A thin, distant tone is a strong blockage signal.

Your iPhone has two speakers, not one

This is the distinction that decides which repair you need, and it is the one most people have never had reason to think about.

The loudspeaker sits at the bottom of the phone, behind the grille beside the charging port. It handles music, video, speakerphone, alarms and the ringer — everything you hear with the phone away from your face.

The earpiece sits at the very top of the screen, in the slot above the display. It handles the audio you hear when you hold the phone to your ear on a call. On recent models it also doubles as the second channel for stereo playback, which is why a failed earpiece can make music sound oddly lopsided as well as making callers hard to hear.

They are separate parts, on separate connections, and they fail separately. So the test is simple. Play music without headphones. If it comes out cleanly but callers are faint or silent when you hold the phone normally to your ear, the loudspeaker is healthy and the earpiece is the problem. If music is silent but you can hear callers perfectly on the earpiece, it is the other way round. Working that out before you walk in saves a step, and sometimes saves money, because the earpiece is the smaller and usually the cheaper of the two.

The blocked grille, and why it is worse here

A speaker grille is a fine mesh with holes small enough to keep dust out and large enough to let sound through. Pocket lint gets into those holes anyway, a little at a time, and it does not fall back out on its own.

In Singapore it gets worse faster than it does in a dry climate. Humidity makes fine fibres clump together rather than shake loose, so instead of a dusting you end up with a compacted felt mat sitting directly on the speaker mesh. Phones that live in a trouser pocket all day, or in a bag with tissues and receipts, collect it fastest.

The symptom is distinctive once you know it: sound that is present but thin, quiet or muffled, as though the phone were playing from inside a jacket pocket. Volume at maximum sounds like volume at half. Speakerphone calls become an effort. Music loses its bass first, because low frequencies need air movement and the mat is stopping exactly that.

Look at the bottom edge under a bright light and compare the mesh on either side of the charging port. On most iPhones one side is the loudspeaker and the other is a microphone, and if one looks grey and solid where the other looks like open holes, you have found your fault. This is the single most common iPhone audio problem we see, and it is not a broken speaker at all.

What not to do to a blocked speaker

Almost every home remedy for a blocked grille makes the situation worse, and we see the results of all three every month.

What is safe is a soft, dry brush drawn gently across the grille — a clean toothbrush is fine — and occasionally that is enough on its own. Beyond that the tools matter, and a proper clean is something we will often do at no charge when it turns out to be the whole job.

Stuck in headphone mode

There is a specific failure worth naming because it looks exactly like a dead speaker and is neither.

If the phone believes headphones are connected, it will send every sound to them and leave the speaker silent. The tell is the volume indicator: press volume up and the phone shows a headphone icon, or it insists on saying Ringer when media is clearly playing. Alarms may still sound while music does not.

On older iPhones with a headphone socket this was usually debris in the socket. On current models with only a USB-C or Lightning port, it is usually one of three things: lint wedged into the charging port so that the contacts read as an accessory, moisture bridging those contacts, or a Bluetooth device still connected. Look into the port with a torch — a packed port is visibly grey and flat where a clean one is visibly hollow. If the port also charges unreliably or only at certain cable angles, that is the same debris talking, and the iPhone charging port repair page covers what that takes.

When it really is the speaker

Three symptoms point at the part itself rather than a blockage in front of it.

Crackling or buzzing at moderate volume, and especially on anything with bass in it, usually means the membrane has torn or the speaker has been shaken loose by a drop. Cleaning will not bring it back, and it tends to get worse rather than settle.

Complete silence from one speaker while the other works perfectly. This is a useful distinction: a blockage muffles, but a failed speaker goes quiet altogether. If the earpiece is crystal clear on calls and the bottom speaker produces nothing at all at any volume, you are almost certainly looking at the part.

Sound that cuts out when the phone is squeezed, twisted or set down firmly, which points at the connector or the flex cable rather than the speaker itself. That is often a repair rather than a replacement, and it is worth mentioning at the counter because it changes where we look first.

A speaker or earpiece replacement is a contained job on most iPhone models and it does not touch your data or your settings. If the device in question is a laptop rather than a phone, the same reasoning applies but the parts differ — see MacBook speaker replacement or laptop speaker repair for those, and laptop audio crackling if the sound is present but distorted.

Sound that went wrong after another repair

If the audio problem started the day a screen was replaced somewhere, that timing is not a coincidence and it is worth saying plainly at the counter.

The earpiece sits behind a small mesh at the top of the display assembly, and the sensor flex that carries it is one of the fiddliest parts of a screen job. Three things go wrong: the mesh is left off or misaligned so the sound is muffled or buzzy, the flex is not fully seated so the earpiece is silent or intermittent, or a cheap replacement assembly simply came with a poor mesh. None of these means the phone is damaged, and all of them are fixable.

The same applies after a battery or port job where the speaker had to come out. We will tell you honestly whether what we find is a fitting problem or a failed part — and if the original repair is still under someone else’s warranty, we will say so rather than charge you for something you are already owed. Our own screen work is covered on iPhone screen replacement.

Sound that came back, then went again

This pattern is worth recognising because it is almost always liquid, and because it tells you the clock is running.

A phone gets wet. The sound goes immediately or within hours. Over the next day or two it comes back, perhaps not quite as loud as it was, and the owner reasonably concludes that it dried out and everything is fine. Weeks later it fades again, and this time it does not come back.

What actually happened is that the water evaporated and left its minerals behind, sitting on the speaker contacts and on the traces around them. Those minerals keep conducting where nothing should be conducting, and they corrode quietly the entire time. The phone was never fine; it was on a timer. Sound is often the first thing to go because the speaker openings are among the few deliberate holes in an otherwise sealed device, so liquid reaches them early.

If your phone has been wet at any point — a pool, a sink, a downpour at a bus stop, a drink across a table — say so when you bring it in, even if it was weeks ago and it seemed to recover completely. It changes what we look for first, and a clean before corrosion spreads is a far smaller job than a board repair afterwards. There is more on what to do in the first hour on iPhone water damage repair.

When it is the board, not the speaker

Occasionally the speaker is in perfect condition and the circuit driving it is not. The tell is that more than one audio function has failed at the same time — no sound and no microphone, or both the earpiece and the loudspeaker silent while the phone is otherwise completely normal. Sometimes Siri stops responding and voice notes record silence, which is the same circuit seen from the other direction.

Replacing a speaker in that situation changes nothing at all, which is exactly why we test before we quote rather than fitting a part and hoping. A shop that sells you a speaker for a board fault has sold you a part and not a repair.

This is the work we are set up for. The audio circuit can be repaired at component level — the specific component that failed, replaced under a microscope — rather than by swapping the whole logic board, and that is the difference between a sensible repair and a bill approaching the price of the phone. It is the same approach we take across iPhone motherboard repair. Where a board is beyond saving, the photos usually are not, and data recovery runs on the same bench.

How we work out which one it is

Diagnosis follows the same order as this page, because the cheap answers deserve to be eliminated first.

1. Settings and routing

   Silent switch or Action Button, Focus, Bluetooth, and whether the phone thinks an accessory is plugged in. If the answer is here, you are told that, and there is nothing to pay.

2. Both speakers, separately

   A tone through the loudspeaker and a call through the earpiece, so we know which of the two is involved before anything is opened. We listen for the difference between muffled and absent, because they lead to different jobs.

3. The grilles and the port

   Under magnification, looking for the compacted mat, a pierced mesh, or debris in the charging port. Very often this is where it ends.

4. Inside, if it needs to go there

   Connector seating, flex condition, and any sign of liquid or corrosion around the speaker contacts. Corrosion found here changes the conversation, and we will show you what we are looking at.

5. The circuit

   If the parts test good, the fault is upstream, and that is measured on the board rather than guessed at. Only then does anyone talk about component-level work.

What it costs, and what it does not

Diagnosis is free on a walk-in. If the answer turns out to be one of the three settings at the top of this page, you will be told exactly that and you will not be charged for it. If it is a blocked grille, a clean is frequently all it needs, and frequently costs nothing.

A speaker or earpiece replacement is quoted after diagnosis rather than read off a list, because the price depends on the model and on which of the two parts has failed. Board-level audio work is quoted once we have seen the actual fault, for the same reason. In every case the quote is written and you approve it before anything is started — and if we cannot fix it, you do not pay a repair fee.

We are an independent workshop and not authorised by Apple, which matters in one direction only: if your iPhone is new enough to still be in warranty or on AppleCare+, that cover is worth using first and we will tell you so. For everything past that point, the iPhone repair cost guide maps what work on an iPhone runs to here, and iPhone repair Singapore covers the rest of what we do on the bench. If your phone is a current model, the iPhone 16 repair page has the model-specific notes, and older handsets are covered on iPhone 14 and iPhone 13. A phone that is silent and also barely lasting the day is worth reading about on iPhone battery replacement before you spend on either.