Saturday, October 20, 2012

How to downgrade iOS 5.1 iPhone 4 without SHSH Blobs?

Did you never saved SHSH blobs, but really need to downgrade to iOS 5.0.1 or 5.0 ? Some ppl says that unless you have the SHSH blobs, you cannot downgrade the software of an iPhone.  Here is where you can download iPhone 4 iOS 5.0.1/5.0 .ipsw .It would be very helpful too...

Downgrade From iOS 5.1 To iOS 5.0.1 / iOS 5.0

Step 1) – The first thing you will need to do is download a tool developed by iH8Sn0w called iFaith. What the iFaith tool does is dumps the SHSH blobs directly off your iPhone, iPod Touch or iPad for the firmware you are currently running. Allowing you to stitch together a custom firmware that can downgrade your iOS device to a previous firmware version Apple is not signing. If you are following this how to guide you most likely already used this tool to dump your iOS 5.0.1 or iOS 5.0 SHSH blobs.
Download iFaith 1.4.2 (Windows)
Step 2) - The next thing you will need to do is run iFaith (click the OK button once you have read the warning).
iFaith v1.4.2 Windows
Step 3) - With iFaith up and running you will need to click the Build *signed* IPSW w/ Blobs button.
iFaith v1.4.2 Windows
Step 4) – Upon clicking the button previously mentioned you will need to browse for the saved SHSH blobs file that was created when you saved your SHSH blobs for the iOS 5.0.1 or iOS 5.0 firmware.
iFaith v1.4.2 Windows
Step 5) – It is now time to browse for the iOS 5.0.1 or iOS 5.0 firmware file. Depending on which SHSH blob file you selected you will need to select either the iOS 5.0.1 firmware file or iOS 5.0 firmware file (download iOS firmware files here).
iFaith v1.4.2 Windows
Step 6) – After you have selected the right firmware file iFaith will begin creating your custom firmware file.
Step 7) – When your custom firmware file has been created go back to the iFaith main menu (if you are not there already) and click the Use DFU Pwner (iREB) button. Now simply follow the instructions presented to you for putting your iPhone, iPod Touch or iPad into pwned DFU mode.
iFaith v1.4.2 Windows
Step 8 ) – With your iOS device in pwned DFU mode you will need to launch iTunes and restore your iPhone, iPod Touch or iPad to the custom firmware file you created. This can be done by Option (alt) clicking the Restore button on Mac OS X or by SHIFT clicking the Restore button on Windows.
Congratulations! You have now downgraded your A4 iOS device from the iOS 5.1 firmware to either the iOS 5.0.1 firmware or the iOS 5.0 firmware. If you have any further questions or concerns please leave them in the comments section below…
source : ijailbreak

3 comments:

Unknown said...
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Unknown said...

what about downgrading the baseband on iphone4?
this awful stubborn bb 04.12.05 i'm stuck with it's said to be really unbreakable...
any good news coming from 2013 hacking realm, pls?

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