Is there any way to transfer data from old phone's sim card to iPhone 4? I recently got the new iPhone 4 but it doesn't have my contacts and old text messages etc. I previously had the iPhone 3gs. When I upgraded my iphone 3gs to iphone 4 they gave me a new sim card but it was basically a replica of my old sim card (eg.same number).
The iPhone can't actually read messages from the SIM card, you need to back it up to your machine and set the iPhone 4 up with the 3GS backup