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iTunes Downgrade Firmware 4.0 to 3.1.3 *Update*

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iTunes Downgrade Firmware 4.0 to 3.1.3 *Update*

Post  khokon on 16th June 2010, 6:27 pm

How to Downgrade Firmware 4.0 to 3.1.3 *Update*






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Update : New method added

2nd Method

Surely some iOs4.0 holder will miss the MobileSubstrate! For those
wishing to return to version 3.1.3 or earlier, I suggest this guide:








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Requirements:


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khokon

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Join date : 17.04.2010
Age : 45
Location : ,Bangladesh

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Re: iTunes Downgrade Firmware 4.0 to 3.1.3 *Update*

Post  khokon on 16th June 2010, 6:37 pm

Guide:
1) After you download everything you need to have installed and
connected the iPhone and iTunes 9.1.1 Open RecBoot;
2) click on 'Enter Recovery Mode "and your iPhone will be in
recovery mode;
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3) Now you try and change the "hosts"
file by adding the string "74,208,105,171 [You must be registered and logged in to see this link.] "below:
MAC: You should click the Finder icon in the Dock, click "Go
to Folder ..." Now look for the file "Hosts" and you insert the
string.
WINDOWS: Follow the path "C: \ Windows \ System32 \ drivers \
etc " open file "Hosts" and change.
4) Open iTunes and you hold down Alt (Mac) / Shift (Windows) and
clicking the Restore firmware downloaded.
5) iTunes will return the error "1015". Now reopen RecBoot and click
"Exit Recovery Mode" to exit the recovery mode.
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Now you have the fw 3.1.3 or 3.1.2 on your device. To
jailbreak, you must use [You must be registered and logged in to see this link.][You must be registered and logged in to see this link.] respectively. [You must be registered and logged in to see this image.]






or

1st Method

Here is a little tutorial to


downgrade your [You must be registered and logged in to see this link.] to [You must be registered and logged in to see this link.].




  1. Check that you have the [You must be registered and logged in to see this link.] installed
  2. Connect your iPhone to your computer
  3. Set your iPhone in DFU mode (hold Home button for 5s, hold Power
    for 10s and finally release Power and keep holding Home button until
    iTunes detects your iPhone)

  4. Select [You must be registered and logged in to see this link.] and restore your iPhone. Even if
    you have some issues message, ignore them, it doesn't matter

  5. Start [You must be registered and logged in to see this link.] and jailbreak your iPhone

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khokon

Posts : 311
Join date : 17.04.2010
Age : 45
Location : ,Bangladesh

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