How To Put Your iPhone in DFU (Device Firmware Upgrade) Mode

Wicked Sago [dot] Blogspot [dot] ComDFU (Device Firmware Upgrade) mode is not the same as restore mode. DFU mode bypasses the current OS installed and allows you to upgrade or downgrade to your OS. If you are getting errors trying to restore in iTunes, DUF mode is very likely for you.

DFU mode is not recovery mode. Recovery mode has a picture that says “connect to iTunes”. In DFU mode, the iPhone screen backlight is not even on and the display is blank. If you have anything on your display you are not in DFU mode.

This is how to achieve DFU mode. You can do it on every phone:

Method 1

  • Attach the phone to the pc
  • Turn the phone off
  • Hold power and home together for *exactly* 10 seconds
  • Release power but keep holding home until the pc beeps as a USB device is recognized.
  • At no point will the display come on. Now your restore should work.

Having problems? Try adjusting the 10 seconds to be slightly less like 9 seconds, then 8, then 7. It’s a tricky timing but you will eventually get it.

Method 2

  • Hook up the phone powered on to the PC
  • Now hold home / power until the phone turns off and keep holding for 10 seconds. If the phone ever turns on during this phase,start over and hold for less time.
  • Now release power and continue holding home until the PC recognizes the phone.
  • I don’t like this method as much because there are “rumors” that it may cause some 1604 errors in the restore. I am not convinced of that though.

Method 3

  • Attach the phone to the pc
  • Turn the phone off
  • Press and hold power. Keep holding power. As soon as you see display on the screen of any sort press and hold home.
  • Hold power and home together for *exactly* 10 seconds
  • Release power but keep holding home until the pc beeps as a USB device is recognized.
  • At no point will the display come on. Now your restore should work.

Having problems? Try adjusting the 10 seconds to be slightly less like 9 seconds, then 8, then 7. It’s a tricky timing but you will eventually get it.

Have MAC OSX 10.5.6 or aMAC Book slim? You have a problem entering DFU mode. Here is an easy fix from the dev-team blog:

  1. You will need an account with ADC (Apple Developer Connection) this is free and takes a few minutes to sign up, you should read the terms and conditions carefully and you should only sign up if you are thinking of developing applications in the future – http://developer.apple.com/mac/
  2. Download the disk image “IOUSBFamily Log release for Mac OS X 10.5.5 Build 9F33” (yes, that is a “5” in 10.5.5 – this is a developer debug package of the USB kernel extension).
  3. Install IOUSBFamily-315.4.1.pkg from within the disk image
  4. Reboot your system!

[via]

How To Put Your iPhone in DFU (Device Firmware Upgrade) Mode How To Put Your iPhone in DFU (Device Firmware Upgrade) Mode Reviewed by Wicked Sago on 7:04:00 PM Rating: 5

1 comment:

  1. THERE IS TRUELY GOD IN CHINA..

    Great Baba is a trust worthy spell caster and he will be of great help to you. I never believed in spell casting but After 5 years of marriage my husband left me because I lost my womb, and i was unable to give birth to children. I felt like my life has come to an end, and i almost committed suicide, i was emotionally down for a very long time, but thanks to this spell caster called Great Xulie from china whom i met online after my friend James Tricia told me how he also helped her to bring back her husband in less than 2 days. I believed her and decided to give Great xulie a try and i contacted him on his email lordxulie@126.com and explained my problems to him. He laughed and told me that In less than 4 days, my Husband will come back for me again, and that he will restore my womb and i will give birth to children. At first i thought it was a lie but i took courage and believed as Great xulie has said and it did happen just as this Great spell caster said, My husband called me and was crying, apologizing for forgiveness. I forgave him and today i am so glad that all worries and problems are gone, and we are even happier than before, another good news is that i am pregnant now, and very soon we are expecting our baby. Great xulie is really a gifted and a powerful spiritual man and i will not stop publishing him because he is a wonderful man. I advice you all If you have a problem and you are looking for a real and genuine spell caster to solve all your problems just Contact Great xulie on his email on lordxulie@126.com at anytime and just visit http://xuliegreatestchinaspellcaster.weebly.com and see so many people testifying about his good and wonderful work. Just contact him not through the site but with his email address lordxulie@126.com and he will help you solve all your problems. Once again thank you Great xulie Thank you, thank you.

    ReplyDelete

Note: Only a member of this blog may post a comment.