The iPhone screen locking issue is identified as a result of conflicts in timing with iOS 11.1.2, specifically caused by the Local Notification feature sending notifications from installed apps on iPhone and iPad without going through the Internet.
Not only iPhone users are affected by this issue, but iPad users also face the same problem.
iPhone screen locks persistently while accessing Facebook, reading news, playing games
There are 2 ways to resolve the persistent iPhone screen lock:
Method 1:(Temporary) Set the iPhone time back by 3 days. >>See the guide to change iPhone time
Method 2: Update to iOS 11.2 >> Refer to the instructional article on updating to iOS 11.2 for iPhone, iPad.
https://Mytour.vn/iphone-bi-khoa-man-hinh-lien-tuc-22056n.aspx
Some ineffective methods include restarting the iPhone, performing a hard reset by pressing power + home, reinstalling apps.
The feature of sending notifications from installed apps on the iPhone without going through the Internet has undergone some changes in the new iOS version, but due to Apple's oversight, it creates a loop with apps that haven't updated yet.
Some popular apps using this feature are Apple Calendar, Money Lover, Headspace...
If you have these apps installed, temporarily uninstall them and wait for Apple to fix the bug. After uninstalling, you can set the time back and adjust the time zone back to Vietnam as usual if there were changes before, otherwise, leave it as it is.
