Samsung Galaxy S3: How to Delete Single or Entire Conversation Thread Text Message

Delete some messages, either text messages or multimedia messages is one of things that you can do to free up some space on the phone's storage. Luckily, there is an option in the Messaging apps which will allow you to set your phone to automatically delete old message when they reached the limit.

See also: How to Set Limit Text or Multimedia Messages and Auto Delete Old Messages on Samsung