iPad Air 2 volume not working
If the volume on your iPad Air 2 is not working, here are a few things you can try
Check the volume buttons. Make sure that the volume buttons are not stuck or damaged.
Restart your iPad. Press and hold the power button until you see the power off slider. Slide the slider to turn off your iPad, then wait a few seconds before turning it back on.
Update your iPad’s software. Go to Settings > General > Software Update and check for the latest update.
Reset your iPad’s settings. Go to Settings > General > Reset > Reset All Settings. This will restore your iPad’s settings to their defaults, but it will not delete any of your data.
Take your iPad to an Apple Store or authorized service provider for help.