Iphone information is unread but not visible.

There may be several reasons why iPhone information is unread but invisible:

1. System problem: Although the Apple system looks complicated, its internal structure is extremely tight. If you suddenly find an error in the program when checking the iPhone, it may be caused by the incompatibility between the latest version of iOS system and the current iPhone model.

2. Data problem: If some data in the mobile phone system is deleted by mistake due to operational errors during use, although it can be recovered, there is no hint on the surface.

3. Harassment interception: If the SMS received by iPhone is identified as spam, it will be intercepted if it is unread.

4. SMS has been deleted or transferred: If SMS has been deleted, or because SMS has been transferred to other accounts, unread SMS can't be seen.