How to Manually Install iOS 4.2 Firmware Update on iPhone, iPad and iPod Touch

Written By Sam on 24 November 2010
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Apple has finally released the iOS 4.2 for all the users. Apple is giving the iOS 4.2 Firmware update for free for all supported iDevices. Users can connect their iDevice to their PC or Mac and launch iTunes to update the firmware to iOS 4.2. But if you are facing any issues with the automatic 4.2 firmware update you can try out the below procedure to manually update your iPhone or iPad or iPod Touch firmware to iOS 4.2.

Download iOS 4.1 Firmware Update IPSW Files – Direct Download Links

Procedure to Manually Update iOS 4.2 in Windows

  • Connect your iPhone or iPod Touch to your PC
  • Start iTunes if it hasn’t started automatically.
  • From iTunes click on your iPhone or iPod touch from the device list
  • Hold down the Shift key and click on Update button
  • Now browse and select the downloaded iOS 4.2 firmware update file and click on Open
  • iTunes will do the rest of job to update the firmware to iOS 4.2

Procedure to Manually Update iOS 4.2 in Mac OS X

  • Connect your iPhone or iPod Touch to your Mac
  • Start iTunes if it hasn’t started automatically.
  • From iTunes click on your iPhone or iPod touch from the device list
  • Hold down the Options key and click on Update button
  • Now browse and select the downloaded iOS 4.2 firmware update file and click on Open
  • iTunes will do the rest of job to update the firmware to iOS 4.2

It will may take some time for iTunes to complete the updating of your iDevice firmware to iOS 4.2. During this process do not disconnect your iDevice until the update is completed.

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