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How to Enter DFU Mode in iPhone?

By on May 21, 2011 in Apple with 0 Comments

Before we start learning How to enter DFU mode in your iPhone lets learn what DFU mode is and when and why is it needed.
DFU means (Device Firmware Upgrade)

What is DFU mode ?

  • DFU (Device Firmware Upgrade) bypasses the current OS installed on your iPhone.
  • Allows you to upgrade or downgrade your iOS after you put your phone in DFU mode.
  • This can be useful when you are getting errors trying to restore in iTunes, DFU mode is very likely for you.

When to put your iPhone in DFU mode ?

  • If you are trying to Restore your iPhone using Recovery Mode which doesn’t work you will have to use DFU Mode as a last resort.
  • When you want to do a firmware restore using iTunes you should put your iPhone into DFU mode.
  • The most common use for DFU mode is to jailbreak your iPhone.

How to Enter iPhone into DFU Mode:

  • Step 1: Turn off your iPhone.
  • Step 2: Hold down the power and home button.
  • Step 3: Press and hold the Home button and the Sleep/Wake button at the same time.
  • Step 4: After exactly 10 seconds release the Sleep/Wake button. Continue holding the home button until you see an pop up message in iTunes telling you that it has detected an iPhone in recovery mode.

Alternative Method:

This method is only for Windows users. And this method can be used to avoid all the perfectly timed stuff like holding and leaving the home and power buttons

  • First download the required archive http://www.sendspace.com/file/93fx93
  • Extract the archive to the root of your hard drive, should be C:/DFU/
  • Connect your iPhone and ignore iTunes
  • Go to Start – run
  • Next type in “c:/dfu/dfu iBSS.m68ap.RELEASE.dfu”
  • Wait for iPhone to show a “white” screen
  • Now you may proceed to downgrade!

Donot get confused between DFU mode and Restore mode:

How to Exit DFU mode in iPhone:

  • Connect your iPhone to your PC and launch iTunes.
  • Hold the Power button while it is still connected.
  • Hold the power button which will reboot your device and bring it back to normal.

If this does not work try holding the Power and Home button at the same time for 5 seconds which should do the trick

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About the Author

About the Author: A dental student and a gadget geek, who often writes reviews of mobile phones, and digital cameras. .

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