Update your iPhone & iPod Touch to iOS4 Now
Install the latest mobile operating system from Apple Inc - iOS4 on your iPhone 3G, 3Gs and the iPod Touch.
Step 1 : Download and install iTunes 9.2 (latest) on your PC/Mac
iTunes 9.2 Update Process
Step 2: After installing the iTunes 9.2, connect your iPhone/iPod to your system with the USB cable. iTunes will now launch. …..