Iphone 12 messages are not sorted by time.

As long as you turn on the automatic date/time update function in iPhone settings, it should be solved.

1. First, determine whether the date and time format and time of the mobile phone are correct. Incorrect time format often causes this phenomenon. You can change the time setting to automatic adjustment in your mobile phone.

2. You can also try downloading the third-party address book software. Open the app store in your phone and search the address book. You can try any software.

3. If the above aspects cannot be corrected, it is suggested to restore the factory settings, but it still cannot be solved and needs to be refreshed.