How to fix iTunes backup missing some SMS ?
My paid app (which relies on iTunes non-encrypted backup before it can export to CSV) claims some of my missing SMS export is due to their non-text content.
However, there’s two reasons why I suspect iTune backup is the problem.
① website says SMS has no non-text content https://blog.textedly.com/difference-between-texting-and-instant-messaging),
② this App has claimed one of my previous iTunes backup is corrupted.
③ missed SMS export is no different from successful exported SMS except dates and amount.
I need help how to
① differentiate non-text content of SMS when viewed by iPhone Message.
② know if iTunes hasn’t backup all my SMS messages?
iPhone XR