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Thread: Trouble Downgrading from OS4 to 3.1.3 3GS

  1. #1
    Default Trouble Downgrading from OS4 to 3.1.3 3GS
    Hey guys,
    I am having problem trying to downgrade my os4 beta 4 to 3.1.3. Just want to get back to official OS. for my 3GS. The phone has never been jailbroken or anything.

    I am on windows 7 btw. I have tried the restore from latest version of iTunes and put it in DFU mode when I got error 1015. Installed iRecovery and followed instructions with the compatability options and running as administrator. When i get to command prompt I run iRecovery -s and i get Got USB, No iPhone/iPod found.

    How do I get around this? I have followed the instructions and reset it abunch of times to keep getting it in DFU mode but it will not find the phone via iRecovery? I have tried different usb ports too. Right now it's showing the connect to iTunes on the screen.

    Any help would be greatly appreciated.

  2. #2
    After the failed restore, reboot the phone and use blackra1n while the phone is in recovery mode.

  3. #3
    What's Jailbreak?
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    mmmmm any other reason other than getting back to official OS? Something you didnt like out of it

  4. #4
    I tried to do this after iOS4 beta 3 failed on me; it was horrendously laggy and unresponsive.
    I attempted a downgrade and it failed miserably... I could get iPhone to boot with iRecovery but when it finally did the only apps installed were weather and youtube. Restored 6+ times and it got progressively worse!
    Whether this was just my iPhone or not, i don't know but it's now in the capable hands of the Apple technicians.

  5. #5
    iPhone? More like MyPhone gsmumbo's Avatar
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    Did you also install libusb?

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