No sound or distorted speaker audio on iPhone

• Estimated time: 3 min
• Easy
• Low risk

Separate wrong output, one app, calls and a general failure.

1. Briefly play familiar audio and adjust volume while it plays. In Control Centre’s output picker, check whether output goes to the iPhone or Bluetooth/AirPlay; disconnect headphones if you intended to use the speaker. Do not turn volume to maximum to compensate.

2. Record whether only that app, all media sources or only calls/alerts fail. If an external output was selected and choosing iPhone restores sound, stop: cleaning or deleting connections is unnecessary.

3. If it began after liquid exposure, impact or visible damage, avoid further volume tests and seek service. Do not play loud tones to try to eject water.

• Estimated time: 5 min
• Easy
• Low risk

1. With iPhone output confirmed, compare at the same volume level using another app and familiar audio. If only one app or file fails, check its mute/output and seek that app’s support; do not conclude the speaker is broken.

2. If media works and only ringtones/alerts are missing, check silent mode using the switch or Action button for your model and the active Focus mode. Change only the setting suppressing the expected alert.

3. If headphone sound works but iPhone output does not, that separates paths without proving a physical cause. Move to external inspection and the ringtone check; for a headphone connection failure, follow the relevant related guide.

• Estimated time: 10 min
• Easy
• Low risk

1. During an agreed call, set call volume to a comfortable level and compare receiver and speakerphone once. If one works and the other does not, record that difference; it does not by itself identify a damaged part.

2. If ringtones/media work and only the call has static or dropouts, try later, somewhere with better reception or with another caller. If it changes with that condition, investigate coverage/the other caller before cleaning the phone.

3. If the receiver fails with different callers and there is obstruction or persistent distortion, follow external inspection. If the other person cannot hear you but you can hear them, use the related microphone guide: that is the opposite audio direction.

• Estimated time: 10 min
• Easy
• Low risk

1. Remove a case or protector covering speaker or receiver openings and repeat a brief test. If it clearly improves, correct that accessory; do not insert objects to clean inside.

2. Inspect only the external surface. If surface dirt can be removed with a small clean dry soft-bristled brush without pushing inward, do so gently; if embedded or damaged, leave it to service. Do not use liquids, compressed air or pointed tools.

3. Move the slider to a moderate volume. If no sound plays or the speaker control is greyed out, Apple indicates service may be needed; do not keep raising volume.

   1. Settings
   2. ›Sounds & Haptics
   3. ›Ringtone and Alerts

4. If crackling persists with different audio at moderate volume, or the same path remains silent after removing obstructions, give Apple those results. If switching speakerphone only changes it temporarily, record the behaviour without calling it a repair or proof of damage.