How to retrieve the content of SMS deleted by mobile phone?

Step 1: First, you need to back up the data of Apple's mobile phone: connect Apple's mobile phone to the computer through the data cable, run the iTunes program, check "This computer" in the "Backup" column, click the "Back up now" button, and click the "Don't back up the application" button in the pop-up window. Step two. Next, you need to analyze and manage the backed-up data with the help of "PP Assistant". After the phone is normally connected to the computer, run the "PP Assistant" program, switch to the "Toolbox" tab, and click the "iTunes Backup Management" button. Step 3: At this time, you can find the previously backed-up Apple phone data file in the "PP Assistant"-"Backup Management" interface, and double-click this file to open it. Step 4: In the opened backup file interface, switch to the SMS tab, select the sms.db file, and click the Export button. Step 5, export this "short message file" to the directory designated by the computer, and then Baidu searches for "building and month short message recovery software" and installs, downloads and installs it. Run the program, click File-Open the SMS database file in its main interface, and select and import the previous SMS file. Step six. At this point, all the "visible" numbers and short message contents in the current short message file will be listed automatically. Click "Restore Deleted SMS" here, and you will find that the deleted SMS has been successfully restored.