iphone message repeat alerts not working

Q: "I updated my iPhone to iOS 13 last night, and everything about it is great except for one problem - my iPhone message repeat alerts not working. Thanks to it, I have missed two messages so far. How can I fix it?" - A user posted on an iOS help forum

Though seems annoying to some uses, the iPhone repeat message alerts effectively prevent people from missing messages. iPhone will send another alert to inform users if they don't unlock the phone after a message arrives. This feature may fail to work sometimes, and the result is that people start to miss messages, some of which are important ones. Therefore, in this guide, we will tell you how to let message repeat alerts go back to work. Also, if you find this feature annoying, you can follow our guide and turn it off.