If your iPad’s audio jack is not working, here are a few things you can try:
Check the headphone connection. Make sure that your headphones are plugged in securely and that the volume is turned up.
Try a different set of headphones. If your headphones are working on another device, the problem may be with your iPad’s audio jack.
Restart your iPad. Sometimes, a simple restart can fix minor software glitches.
Update your iPad’s software. A software update may include a fix for the audio jack issue.
Reset your iPad. Resetting your iPad can sometimes fix problems that are caused by corrupt data.
Restore your iPad. Restoring your iPad will erase all of your data, so only do this as a last resort.