iPhone not making notification sounds when locked
When my phone is locked, I don’t receive any notification sounds from iMessage & any social media apps. I do hear the notification sound when the phone is unlocked however.
I have an iPhone 11 with the latest software updates. Silent mode is off and the volume in the control centre is fairly high. Focus mode (and DnD) is off but I’m still unable to hear any notification sounds.
I’ve researched this online but nothing seems work.
Any idea how to make the notification sound work when the phone is locked?
[Re-Titled by Moderator]