Apple today released iOS 4.2 (4.2.1) for iPhone 4, iPhone 3G S, iPhone 3G, iPod Touch 3G, iPod Touch 4G, iPad Wi-Fi and iPad 3G models. The iOS 4.2.1 upgrade comes with several software level bug fixes and features like AirPlay, AirPrint, etc. Apple has also introduced a free MobileMe alternative for 4th generation iDevices through iOS 4.2. As promised, iOS 4.2.1 brings multi-tasking, folders, Unified Inbox, game center, and some other iOS 4.0 features in Apple iPad models. So this update is going to a huge one for the iPad owners. Right now many people are experiencing problems in connecting to the Apple servers through iTunes. This is obviously due to the simultaneous requests from millions of people. Here we have the direct download links to iOS 4.2.1 ipsw file that you can use to update iPhone 4, iPhone 3G S, iPhone 3G and iPod Touch and iPad, offline using the restore method in iTunes 10.
iOS 4.2.1 update notes:
Apple iOS 4.2 features:
AirPrint: The AirPrint facility in iOS 4.2.1 let you print web pages, documents, images, email and all right from your iPhone, iPod Touch or iPad. All you need is a WLAN connection, and AirPrint supported Printing device like HP ePrint.
AirPlay: AirPlay feature in iPhone, iPod or iPad can be used to stream music, videos and photos wirelessly to other AirPlay enabled devices.
Find My iPhone: Find My iPhone is a new iOS 4.2.1 feature for iPhone 4, iPhone 4th generation and iPad models. Actually, it’s a free alternative for Apple MobileMe service that let you track your device and manage its data through a web account. With this software, you can locate your device in an online map, lock-it, or remotely wipe its data using commands.
iOS 4.2.1 includes a Safari web browser enhancement for quick searching through long web pages. Customizable font options for Notes app, 17 new SMS tones, enhanced calendar, keyboard, dictionary and enterprise security, are other features of iOS 4.2.
iOS 4.2.1 direct download links
Download iOS 4.2.1 ipsw for iPhone 4 here.
Download iOS 4.2.1 ipsw for iPhone 3G S here.
Download iOS 4.2.1 ipsw for iPhone 3G here.
Download iOS 4.1 ipsw for iPod Touch 4the generation here.
Download iOS 4.2.1 ipsw for iPod Touch 3G here.
Download iOS 4.2.1 ipsw for iPod Touch 2G here.
Download iOS 4.2.1 ipsw for iPad WiFi/3G here.
Sometimes you will get a corrupted file when you download the iOS 4.2.1 update using download managers. So its better to download these ipsw files using your web browser.
How to update your iPhone, iPod Touch or iPad to iOS 4.2.1 in offline mode:
First you need to download the latest version of iTunes (10.1) from Apple.
After that, download the iOS 4.2.1 ipsw for your iPhone, iPod Touch or iPad from the above links.
Connect your device to Mac/ Windows. From the Device’s section in the left pane, right click on the device, and backup. Now you should be in the summary page. Click Shift+Restore (Option key in Mac) and browse to the location of the downloaded iOS 4.2.1 ipsw. Now wait until your device completes the software installation.
Please note that the iOS 4.2 would break your existing jailbreak, unlock or hactivation. So if you are not using a factory unlocked or official iPhone or iPad model stay away from iOS 4.2 update.
Update: Apple released iOS 4.3 for download.