It's always good to have everything prepared. To backup your SMS in the iPhone to your computer before accidental dropping or other situations that may cause the loss of your text messages.
Download and launch this transfer on your computer. Connect your iPhone with a USB cable. The program will detect your iPhone model automatically. You can browse all the media data at the left column.
Note: Make sure you've installed iTunes on your PC before doing the transferring.
Step 2 Transfer the text messages from iPhone to computer
By selecting the SMS tab at the left column, you may see all your text messages on the right panel. Choose the important messages you want to export. Then, click "Export to". Choose "export selected SMS to computer". If you want to export all the SMS to your PC, you may select "Export all SMS to computer".
After that, confirm if the location on disk path is correct, then choose your saving format between .xml or .txt. The program will start to export text messages. Make sure that your iPhone is well connected to your computer during the transferring period. Click "OK" after it's finished.
iOS Transfer can do more than SMS transferring. You can use this handy tool to transfer your photos, videos, contacts and playlists as well. You may ask, how do I transfer contacts from iPhone to computer? Just download and have a try, you may feel much more convenient with it.