Apple iPhone 13 microphone is quiet, muffled or not working

6.1-inch all-screen OLED, at 2532-by-1170 at 460 ppi. That matters more than it sounds — a procedure written for a different size in the same line puts controls in different places, and gestures that depend on reach behave differently.

Lightning. A USB-C cable will not fit at all, which is the usual explanation when a charger that works on a newer iPhone in the same household does nothing here. Lightning cables also fail internally at the strain point, so a cable swap is the first test for slow or intermittent charging.

Face ID. It is deliberately quick to refuse when not confident, which is why darkness, strong backlight, unusual angles and lying down all reduce it — and why a case lip or a screen protector over the sensor area disables it entirely.

The A15 Bionic. This determines how long the model keeps getting iOS updates, and it is the reason an app can drop support for this iPhone while running fine on a newer one — a support-window matter rather than a fault to troubleshoot.

128GB/256GB/512GB. Before assuming capacity is the problem, read the storage breakdown: photos and video are usually the dominant category, and a full recently-deleted album is the most common reason deleting appears to free nothing at all.

No — water resistant, rated IP68, which Apple specifies as a maximum depth of 6 metres for up to 30 minutes under IEC standard 60529. That is a laboratory figure for a new device in fresh water; it degrades with age, drops and seal disturbance, and liquid damage is not warranted.

Yes — Dual eSIM, with two active eSIMs and storage for eight or more profiles. Note that the default line for calls, for messages and for cellular data are three separate settings, and crossing them produces calls on one number while data or messages use another.

Wi-Fi 6 (802.11ax) with 2x2 MIMO. That is worth knowing before blaming the phone for slower Wi-Fi than a newer device on the same network — a router running a newer standard falls back to what the phone supports rather than refusing it, so the difference is specification rather than fault.

Bluetooth 5.0. Version affects range, reconnection behaviour and which accessory features are available. A newer accessory paired here operates at this version's capabilities rather than failing, which is regularly mistaken for a pairing fault when the accessory simply cannot do everything it does on a newer phone.

800 nits maximum brightness (typical), with 1200 nits peak (HDR). Brightness is among the largest single consumers of battery, so outdoor use at full brightness costs real runtime — and poor outdoor readability on this model is usually this figure rather than a display fault.

Apple rates it at up to 15W over MagSafe. Wattage differs across this line, so a charger that fast-charges a newer iPhone may deliver less here — and if wireless charging has stopped while cable charging works, take the case off first, because a metal plate or a card defeats the alignment entirely.

Apple rates it at up to 50% charge in 30 minutes. That assumes an adequate adapter — a low-output adapter, a laptop USB port or an old car charger falls well short, and that is the usual reason a phone charges far more slowly than the specification suggests.

Apple rates it at up to 19 hours of video playback. Judge your runtime against that figure and your own history rather than against a different iPhone — the rating varies widely across this line.

4K video recording at 24, 25, 30 or 60 fps. Resolution and frame rate are the dominant factor in how fast video fills storage, and they push the phone hardest thermally — sustained high-frame-rate recording is the most common reason a camera stops mid-take.

Check for a connected Bluetooth accessory first — including one in another room or a car outside. A connected accessory takes the call's microphone with it, and the phone gives almost no indication that it has. This is more common than any hardware fault.

Record a voice note. That uses the microphone with no network, no other party and no call software involved. A clean recording exonerates the microphone completely and tells you the problem is in the call path or in one app.

Those use different microphones. A handset call uses the one near your mouth at the bottom, or the one by the earpiece; speakerphone uses a different combination. One working and the other not localises the fault precisely — and a screen protector over the top slot is a common cause.

Two usual causes: something covering the port, or lint inside it. Take the case off, keep your palm off the bottom edge, and look into the ports with a bright light. Gradual degradation over months is lint; sudden onset is usually the case or an accessory.

Check that app's microphone permission. Permissions are revoked by updates and privacy settings, and a 'don't allow' tapped months ago is invisible now. The hardware is fine, since it works elsewhere.

That is usually noise suppression misjudging a quiet speaker rather than a hardware fault. Compare a recording in a normal room against one outdoors, and change the voice isolation setting if your phone offers one.

A soft dry brush, gently, with the phone powered off. Never a pin — the mesh is delicate and pushing debris through it is worse than leaving it. Not compressed air forced into the port, and nothing liquid.

Water in the mesh damps the diaphragm without damaging it, and it usually recovers. Leave the phone port-down in moving air for several hours. Do not apply heat, which drives moisture further in, and do not use rice, which adds dust to the problem.

Then it is very probably not your phone. Call audio has two ends and a network between them, and a single affected contact points at their end or the route. Test with someone else and record a local voice note to confirm.

No. It is scoped to A2482/A2631/A2633/A2634/A2635. Apple iPhone family; connector, modem, camera, biometric and iOS eligibility vary by exact model.

Record the complete model identifier, exact message or indicator, software/firmware where visible, the operating stage and what still works.

A reset can erase accounts, networks, maps, schedules or preferences without distinguishing microphone, can't hear me. The ordered checks preserve that evidence.

Do not insert tools or liquid into microphone openings.