How does Iphone5 delete SMS in batches?

Download itools, install and run it. Connect the mobile phone to the computer, click the third "toolbox" on the left and click "Create Backup"; Generally, backup is more patient. After creating the backup, double-click to open it. Click on "SMS" to see a database file of "sms.db". These are all your messages. Open it to the right ~ it's cold now. If you want to delete them all, just tick "Phone Number".

Click "Delete"-the world is instantly clean!

Comrade, at this point, I have to tell you solemnly that * * has not succeeded yet ~

The most crucial step-click the "Save" button.

After seeing the success of saving, close these two windows and return to the main window where the backup started. Select a backup, click "Restore from Backup" above, select a backup point, and don't unplug the connection cable during "OK". Wait 1 min

It's done. -It's really done this time.

The phone will automatically turn off and restart.

Look at the news, it's all gone