I have a Samsung Galaxy S4, and there were some important text messages on my phone. I never deleted them myself, but I'm guessing my phone had deleted some of them over time, and I desperately want them back. Is there a way to recover deleted text messages?
That data may be one your device's SIM card. You would need a SIM card reader and an application designed to read information on the SIM card.
If you had your texts stored on your SD card, you MIGHT be able to use data recovery software to retrieve that information, however that will be difficult.