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Download iOS 4.2 (4.2.1) Final for iPhone 4/3GS/3G, iPod Touch 4G/3G/2G & iPad

As confirmed in a press release today, Apple has just released iOS 4.2 final version for iPhone 4/3GS/3G, iPod Touch 4G/3G/2G & iPad (Wifi+3G). iOS 4.2 brings over 100 new features from iOS 4.0, 4.1 and 4.2 to iPad including AirPlay, AirPrint, Multitasking, Folders, Unified Inbox and Find My iPhone service.

iOS 4.2 AirPrint Feature
iOS 4.2 AirPrint feature will allow you to print documents, emails, photos and web-pages over a Wifi connection with your Apple iOS device. In order to print any media from your iPhone, iPod Touch or iPad, you must first configure AirPrint on your PC or Mac. However if you have HP ePrint enabled printer, you can directly print any media from your iDevice without any additional setup over local wireless networks.

iOS 4.2 AirPlay Feature
With iOS 4.2 AirPlay feature, you will be able to stream music, photos and videos directly from your iPhone, iPod Touch or iPad to your Apple TV. With AirPort Express support you will be able to stream any media directly to the stereo or powered speakers around you.

Find My iPhone MobileMe Service
Find My iPhone service which was previously available for MobileMe subscribers is now free. You can download Find My iPhone app for your iPhone, iPod Touch and iPad from App Store for free. Find My iPhone service allows you to locate your missing iDevice on a map and have it display a message or play a sound. You can also lock or wipe data from your lost device to protect your privacy.

Other features of iOS include: the ability to rent TV episodes directly to iPad, the ability to find and highlight a specific word on a web-page using native Safari browser, new device management capabilities and improved enterprise integration.

Supported Devices by iOS 4.2:

  • iPhone 4
  • iPhone 3GS (Old+New Bootrom)
  • iPhone 3G
  • iPod Touch 4G
  • iPod Touch 3G
  • iPod Touch 2G (MC, non-MC)
  • iPad (Wifi+3G)

Note that iPhone 3G and iPod Touch 2G users will not be able to use Multitasking feature of iOS 4.2 due to processor power limitation. Moreover free Find My iPhone service is available for iPhone 4, iPod Touch 4G and iPad users only.

To update your iDevice to iOS 4.2, just connect it to your PC or Mac through USB cable and launch iTunes. You will see an update prompt from iTunes as shown in the screenshot below, just hit the "Download and Update" button to update the firmware on your device.

iOS 4.2 Update via iTunes
Here are direct download links for iOS 4.2 final:

iPhone 4 (iPhone3,1_4.2.1_8C148_Restore.ipsw)
iPhone 3GS (iPhone2,1_4.2.1_8C148a_Restore.ipsw)
iPhone 3G (iPhone1,2_4.2.1_8C148_Restore.ipsw)
iPod Touch 4G (iPod4,1_4.2.1_8C148_Restore.ipsw)
iPod Touch 3G (iPod3,1_4.2.1_8C148_Restore.ipsw)
iPod Touch 2G (iPod2,1_4.2.1_8C148_Restore.ipsw)
iPad (Wifi+3G) (iPad1,1_4.2.1_8C148_Restore.ipsw)

Note: If you rely on a jailbroken or unlocked iOS device, DO NOT upgrade to iOS 4.2 as it will leave your device in an unjailbroken state. Upgrading the iPhone firmware to iOS 4.2 will also upgrade its baseband version which is yet to be unlocked by iPhone Dev-Team.

Update#1: Download iOS 4.2 Final for Apple TV 2nd Gen
Update#2: Download GreenPois0n RC5 for untethered iOS 4.2.1 jailbreak on Mac OS X
Update#3: Download GreenPois0n RC5 for untethered iOS 4.2.1 jailbreak on Windows
Update#4: Download official PwnageTool 4.2 for untethered iOS 4.2.1 jailbreak on Mac
Update#5: Download Sn0wbreeze 2.2 for untethered iOS 4.2.1 jailbreak on Windows

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    Sabrina7 years ago

    I have a 16Gb Ipod touch 1st generation… can’t able to install any program to update his system (got a mac full update version 0sx 10.9.5) can you help me??? thanks

    joe9 years, 1 month ago

    i have a 2G ipod touch 8gb and ive jailbroken it twice before with greenpois0n and redsn0w i used redsn0w first in like 2010 then greenpois0n last year but i dont remember what versions they were so i could redownload the tools onto my new computer and i sold the last one so i got the newer versions and neither work with greenpois0n i jalbroke it but cydia wouldnt work when i went into it it crashed and with redsn0w it keeps saying that it cant recognize the ipsw file you had me download or any other website i download it from they are all the same ipod2,1_4.2.1_8c148_restore.ipsw so i dont know whats wrong email me your thoughts

    rachel10 years ago

    I have an iPhone 3GS, 4.3.5, 05.16.02. It is jailbroken but I need it unlocked for TMobile. Any advice will help! Thanks!

      Pramod10 years ago

      You will need to update your BB to the iPad BB first. Read this Make sure that your aware of the consequences / dangers of updating to the iPad BB & only then continue. Google the same if necessary.

    Brandon10 years, 2 months ago

    I saved my shsh blobs through cydia on my iphone 4 but Im wanting to jailbreak my ipad. My iphone is jailbroken on 4.3.3 but I noticed that apple isnt signing it anymore. What is the easiest way to downgrade and jailbreak my ipad?

      Pramod10 years, 2 months ago

      What are you talking about? An iPhone or an iPad downgrade? Please be more concise & clear with your queries.

    mary-anne10 years, 3 months ago

    Ive got an iphone 3gs, 4.3.3, 05.16.02 – how do i unlock the phone/network??

      Pramod10 years, 3 months ago

      By following this guide right here: make sure you have read the Update #1 at the bottom of the the post before you start. Good Luck.

    Ken10 years, 6 months ago

    Hi, I am currently having a jailbroken Iphone 3GS with 3.1.2 firmware. How do I upgrade to 4.2.1 firmware withour affecting my jailbreaked apps?? Thks

      Wolverine10 years, 6 months ago

      Sorry Ken, you must backup your iPhone apps by syncing them with iTunes before you may upgrade to iOS 4.2.1. Also note that in-order to upgrade to iOS 4.2.1, you must have iOS 4.2.1 SHSH blobs saved in Cydia. If your SHSHs are saved, install AppSync from Cydia and backup your iPhone through iTunes. Once done, use PwnageTool, Sn0wbreeze or GreenPois0n to jailbreak your iPhone on iOS 4.2.1.

        dj spykid9 years, 1 month ago

        hi, i have my iphone 3gs 4.1… then when I use it to download song from itunes, the message affire that upgrade is avialable 5.1 the i try i but now my iphone don’t have signal. Its lost pls… help