Apple has officially released iOS 5.1.1 IPSW Firmware Software Update for iPhone 4, iPhone 4S, iPhone 3GS, iPad, iPad 2, iPad 3, and iPod 4G/3G Touch devices. You can download and install the latest iOS 5.1.1 update directly from your Apple iDevices through OTA (Over-the-Air) wirelessly or you can also download and install iOS 5.1.1 from your PC desktop via iTunes. The new iOS 5.1.1 IPSW Firmware software update includes the major bug fixes, improves the reliability of using HDR option. Download and install iOS 5.1.1 on your iPhone 4, iPhone 4S, iPhone 3GS, iPad, iPad 2, The New iPad 3, iPod 4G/3G Touch devices from below.
Apple released the final version of iOS 5.1 for the iPhone, iPad and iPod touch in March with improved camera face detection feature, improved audio quality on iPad while watching movies or TV programs, battery life bug fixes and more. View complete change log below and download iOS 5.1.
If you have downloaded iOS 5 beta, you must first activate your idevice to run it. Activating firmware means is that you have to get the UDID of your device and get it registered with the iPhone Developer Program before you can start (legally) loading beta firmware on it and you don’t face any problems while synchronizing with iTunes. Installing beta firmware on unactivated device will make it useless. Here is how you can activate iOS 5 beta 1.