This might result in other issues that you would rather avoid. During the process, you will be resetting your iPhone to its original factory settings. If you are one of them, you can use the backup to recover deleted iPhone messages. Many iPhone users take advantage of Apple’s iCloud to back up their devices. Method #1: Use Your iCloud Backup to Recover Deleted Text Messages
As a precaution, you should always perform a backup before you upgrade your iPhone. A faulty iOS upgrade can cause all kinds of problems with your iPhone, and lost text messages may be one of them. ⚙️ Faulty iOS upgrade – Apple tries its best to avoid introducing issues when it’s time for an iOS upgrade, but the company is not perfect.Accidentally tapping on one might allow some malware to get into your iPhone. I’ve seen a steady increase in the number of strange text messages from unknown senders that include potentially dangerous links.
Malicious software can be introduced to your device by connecting it to an infected computer or directly from a malevolent email or text message.
Reasons You Might Lose iPhone Text Messages.