iOS 4.3 Firmware is now available for download. You can download iOS 4.3 IPSW for iPhone 4, 3GS, iPad 2, 1, and iPod Touch 4G, 3G, Apple TV 2G. iOS 4.3 build 8F190 download links can be found below…
How to Install iOS 4.3
*** iOS 4.3 requires iTunes 10.2.1
To install iOS 4.3 on your device, connect your iPhone/iPod Touch/iPad to iTunes 10.2.1, new firmware availability message will appear then hit the “Download and Install” button.
You can also download iOS 4.3 firmware from the links below. Hold down the Shit (Windows) or Alt/Option (Mac) key and hit the restore button on iTunes and select the downloaded IPSW file.
WARNING: Jailbreakers/Unlockers MUST stay away from iOS 4.3 until further notice.
Download iOS 4.3 Firmware
Download IOS 4.3 For IPhone 4
Download IOS 4.3 For IPhone 3GS
Download IOS 4.3 For IPod Touch 4G
Download IOS 4.3 For IPod Touch 3G
Download IOS 4.3 For IPad 2
Download IOS 4.3 For IPad
Download IOS 4.3 For Apple TV 2G
You can download the latest iTunes 10.2 from the link below:
We’ll keep you updated as soon as iOS 4.3 jailbreak tools are available for download along with detailed step by step instructions.
How to: Downgrade iOS 4.3 to iOS 4.2.1