Audio complaints are the most commonly misdiagnosed iPhone repair, because customers describe every fault as "the speaker". Two minutes of structured testing tells you exactly which part is at fault before you open the phone.
The two-minute audio matrix
| Test | Hardware tested | If it fails |
|---|---|---|
| Play music on speakerphone | Bottom loud speaker | Replace loud speaker |
| Hold phone to ear on a call | Ear speaker | Replace ear speaker + proximity flex |
| Record a voice memo | Bottom mic | Charging port flex assembly |
| Siri responds normally | Mic array + audio codec | If mic fails here, suspect board |
Why XS Max ear speakers fail
The ear speaker module on the XS Max is part of the sensor flex assembly. Dust and pocket lint pack into the mesh until calls sound underwater. Blowing compressed air is a temporary fix; the permanent fix is a replacement speaker module. We stock ear speaker, loud speaker, and cross-series loud speakers for mixed repair volume.
One fault that is not a speaker
If callers cannot hear you but recordings work, check the charging port flex — the bottom microphone lives there, and port lint often silences it before the mic itself fails.
FAQ
Can I clean instead of replace? Yes for mesh lint, no for distorted (crackling) playback — crackling is a torn cone, replace it.