Why does iphone delete all messages?

Step 1: Click the SMS icon on the mobile phone desktop to enter the SMS interface.

Step 2: Click Edit in the upper left corner to enter the SMS management interface.

Step 3: Select the message to delete, tick the circle in front of the message, and then click Delete in the lower right corner.

Method 2: Set Apple's mobile phone to delete SMS automatically.

Apple mobile phone has built-in SMS retention time setting. The owner can freely define how long to save the SMS according to his own preferences, but there are only three options by default: 30 days, 1 year or permanent. By default, it is permanently reserved. If the retention time is set to 30 days or 1 year, the messages that exceed the above time limit will be automatically deleted after expiration.

The specific setting steps are as follows:

Step 1: Click Phone Settings-Information to enter the information settings page.

Step 2: Find the information history in the lower part of the interface, and click Save Information to set the timing.

Method 3: Use Mad Master to erase Apple data, and delete all Apple messages with one click.

Mad Apple Data Eraser is the most popular data protection tool for Apple mobile phones. The tool has a built-in function to delete the privacy data of Apple's mobile phone with one click. This function is very powerful. It can delete all Apple SMS messages with one click, and the privacy protection function can also ensure that the erased personal data cannot be recovered.

Step 1: Connect the Apple phone to the computer.

Step 2: Select the erase mode and scan.

Select the Private Data Erasure option, and then click Scan. After the mad master Apple data erasure scan is completed, you can see the list of mobile phone privacy data containing SMS.