1. Examine the iPhone’s Speaker & Volume
Before you go any further, please double-check that the speaker is operational. You can accomplish this in a variety of ways, including playing a song, movie, ringtone, or even making a phone call over the loudspeaker.
Select Sound & Haptics from your phone’s Settings app. To increase the sound volume, move the volume slider to the right side of the Ring and Alerts area.
If the speaker is working properly, you should hear a sound. If not, go to the repair shop or try one of the other solutions listed below.
2. Restart your iPhone
After checking the speaker volume and testing them, the first thing you should do is restart it. Many software-related issues, such as iPhone sound not working, can be resolved by restarting your iPhone.
Simply long-press the Power button until a slider appears on your screen to restart your iPhone.
Drag the slider to the right to completely shut it down. Long-press the Power button again to restart your iPhone.
Check if you can hear sounds on your iPhone once it boots up, or not, else keep trying further tips.
3. Turn off the DND (Do Not Disturb) Mode
Do Not Disturb (DND) mode is a useful feature on the iPhone that allows you to block sounds and notifications based on schedules or manually.
You won’t get any alerts on your phone if DND is turned on, except for calls from starred contacts or alarms.
If your iPhone’s sound has ceased working, make sure DND mode is turned off.
Toggle off Do Not Disturb in Settings > Do Not Disturb.
It’s also possible to change it through the Control Center.
4. Check if Bluetooth turned off.
To make sure that your iPhone sound is not being transferred to a Bluetooth audio device, you may need to switch off Bluetooth on your iPhone.
For example, If you forget to disconnect and switch off your AirPods after using them, iPhone will continue to send your audio to them until you turn them off.
You can also disable and reconnect Bluetooth by going to Settings > General > Bluetooth.
5. Update Your iPhone To the Latest version
Apple’s culture is to fix faults on iPhones by rolling out software upgrades when they’re needed.
So, Make sure you’re running the most recent version of iOS. If you’re not sure if you’re running the most recent iOS version, then…
Go to iPhone Settings.
Select Software Updates to check for pending upgrades.
Connect to a strong Wi-Fi network and download the update if one is available.
6. Reset Your iPhone Settings
Don’t be scared. It will not erase your data or wipe your phone. The display, audio, and network settings were all reset to factory defaults.
You may need to re-assign your ringtones and other settings after this, but it’s worth a shot to repair the sound not working on iPhone. To reset all of your iPhone’s settings, follow the steps below.
Open the Settings app on your iPhone.
Then tap on Reset All Settings and confirm.
Check to see whether your iPhone’s speaker is working now.