How to select all Apple SMS messages?

At present, there is no option to select all the messages on Apple's mobile phone, but there are methods to delete messages in batches instead of selecting all the messages:

1. First, open the settings of iphone and click "Info". Then click to enter the information setting interface;

2. Find the information history

record in the information setting interface. The default of this item is to keep the information permanent;

3. Then click the information retention option, modify the retention time of information

, set the retention time of information to 3 days

or one year, and then click Delete to save;

4. after modifying the retention time, save and exit, select the date and time in the settings and set the time to 3 days or a year later. (Need to exceed the above information retention time);

5. When the time is changed to the expiration time of the short message, the short message will be deleted. At this time, the opened short message will find that it is empty, which will replace the selection of all, and the short message will be automatically deleted after the set date.