Apple has just released iOS 4.3.1 update 4 iPhone, iPhone 3G, iPad 2, iPad, iPod Touch 4G/3G. This is just a small update to fix bugs, vulnerabilities and problems of battery life in all IOS devices.
To iOS upgrade to 4.3.1, All you have to do is connect your iPhone, iPad or iPod Touch with your computer via USB and start iTunes 10.2.1. You should now see a message as shown in the picture above, click "Download and Install"(Mac OS X) or Download and Update"(Windows) to download the new firmware.
Direct download links iOS 4.3.1 (Apple Official)
