How to Downgrade Your iPhone 4S Using RedSn0w (Windows)

Posted May 11, 2012 at 6:13pm by iClarified | Please help us and submit a translation by clicking here | 99190 views

These are instructions on how to downgrade the firmware of your iPhone 4s using RedSn0w for Windows.

In order to continue you will need to have SHSH Blobs saved for the lower firmware version you are downgrading to. You can use RedSn0w or TinyUmbrella to save your SHSH blobs. Also make sure you have performed a backup of your device using iTunes.

You may want to do this to downgrade from iOS 5.1.x to iOS 5.0.1 for jailbreak.

Step One
Create a folder called Pwnage on your desktop and download the following items into the folder.
- The latest version of RedSn0w
- The current iOS firmware (iOS 5.1.1)
- The older firmware you want to downgrade to (iOS 5.0.1)

Extract the RedSn0w archive.

Step Two
Launch the RedSn0w application from the extracted RedSn0w folder by right clicking its icon and select Run as Administrator from the contextual menu.

Step Three
Select Extras from the main menu.

Step Four
Choose Even More from the extras menu.

Step Five
Select Restore from the even more menu.

Step Six
Click the IPSW button.

Step Seven
Navigate to the Pwnage folder on your desktop and choose the firmware ipsw you would like to restore to and click Open.

Step Eight
You will be informed that an additional IPSW is required. Make note of the ipsw file requested and click the OK button.

Step Nine
Select the additional ipsw specified in the previous step and click the Open button. (This will likely be the most current firmware ipsw).

Step Ten
You will be warned that if you continue your baseband will be updated to the latest version. If you want the best chances of unlocking your phone in the future you should not continue. If you do not care about an unlock click the YES button.

Step Eleven
You will now be informed that your device will be placed into recovery mode. Click the OK button.

Step Twelve
You must now select your blobs for restore. You can choose to specify local blobs or remote blobs.

- Choose this option if you previously saved your blobs with RedSn0w and they were stored on the Cydia server. This is the easiest option if it's available to you.

- Choose this option if you previously saved your blobs with TinyUmbrella or you used RedSn0w but did not let Cydia save a copy of your blobs.
- After clicking Local you will be prompted to select your saved blob file for the firmware you are downgrading to. If you used TinyUmbrella, simply navigate to your home folder and go into the .shsh folder with your saved SHSH blobs. Select the file that matches the ECID displayed in RedSn0w and the firmware version you are downgrading to, then click Open.

Step Twelve
RedSn0w will now stitch your blobs to the firmware ipsw and automatically begin a restore to the modified firmware.

Step Thirteen
You will be informed that your restore has been successful! If you were downgrading to jailbreak you can find jailbreak instructions here.

Add Comment
itaymis - March 20, 2013 at 9:53am
try this one, I have unlocked my phone on very fast (about 6 hours total) and cheap, now i can update to any version without having to worry that my phone will be locked ever again Only 9.99$ for phone unlocks!
hoaithuc - May 14, 2012 at 4:29am
thanks! plz testing
Tokyoipjone - May 12, 2012 at 4:11am
If it's work should be awesome thou iTunes gives error just
Tokyoipjone - May 14, 2012 at 4:36am
We looking same to do iPhone 4 , hope redsn0w downgrade firmware iPhone 4 too
Felipe - May 12, 2012 at 12:05am
Not working 4s 5.1
Me - May 12, 2012 at 1:04am
Just follow the tutorial ,I restored mine this morning this tutorial wasn't even available I figured it out all by myself..It frustration at first it says wasn't supported ...You have to download 5.1.1 firmware before you do this.. It was easy...better then sn0wbreeze actually .. My Iphone4s that sat in the box for over 3 weeks its back.. Thank you DEV team
youn chima - May 11, 2012 at 11:58pm
not wolking 4s 5.1.0
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