Naturally, it’s frustrating when your iPhone volume buttons are not working as they should. Few troubleshooting that may solve this problem:
Restart Your iPhone
Giving your phone that ol ‘reboot may do the trick. If you need to reboot, press and hold the power button until the slider appears, then power off. Wait for a few seconds and then turn it back on it.
Remove the Case
On some phone case, the actual volume button got blocked off. Take your case off and see if the buttons work properly without it.
Check Settings
Settings>
Sound & Haptics, enable “Change with Buttons. This allows you to use the volume button to control ringtone and alert volumes.
Clean the Buttons
Buttons get sticky or lack of response due to dirt or small pieces of debris. Clean around the buttons gently with a soft cloth or a toothpick and isopropanol.iPhone Volume Button Troubleshooting (ad)
Use AssistiveTouch
If the physical buttons still do not work, activate AssistiveTouch in Settings > Accessibility > Touch. This feature gives you a virtual volume button on the screen.
Update iOS
Be sure your phone is up to date with the latest version of iOS; bugs preventing hardware from working properly are often fixed in updates.
Reset All Settings
OR If the issues keep appearing, then without deleting data consider resetting all settings by navigating to Settings > General > Transfer or Reset iPhone > Reset > Reset All Settings.
Seek Professional Help
If this isn’t the case, it might be a hardware problem which would mean the device needs service. Ask Apple Support for help
At the end of the day, you can use these methods to troubleshoot and maybe rectify issues with your iPhone volume buttons.