(a) Under the ‘ Devices‘ section on the left pane of iTunes, click on your iOS device. Step 11: You will now need to restore your iOS device with the custom iOS 5.1.1 firmware file created in step 9. The screen on your iOS device will turn black and iTunes will detect that it is in recovery mode. Redsn0w will inform you that your device is in pwned DFU mode when it’s done. Step 10: Now go back to the Extras page on Redsn0w and click on the Pwned DFU button. Redsn0w will notify you that “Blob stitching done” and place the custom file in the same folder as iOS 5.1.1 firmware file. Step 9: Once Redsn0w successfully downloads the iOS 5.1.1 SHSH blobs, it will stitch the SHSH blobs with the iOS 5.1.1 firmware file to create a custom iOS 5.1.1 firmware file (prefixed with your iOS device’s 13-digit ECID) that will allow you to downgrade. Redsn0w will show the progress bar as it Fetching blobs from the server. If you had jailbroken your iOS device while it was running iOS 5.1.1 and launched Cydia at least once then it would have cached the SHSH blobs on the server.
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If you’ve them stored locally then click on the Local button or click on the Cydiabutton, if you want Redsn0w to download them from Cydia. Step 8: In the next step, you need to retrieve the iOS 5.1.1 SHSH blobs for the downgrade process. Step 7: Click on the IPSW button, here browse to the location you had downloaded the iOS firmware file and select the. Click on the Extras button, then click on SHSH blobs button, followed by the Stitch button. Step 6: Redsnow will report that your iOS device is connected in DFU mode (For example: Connected: iPhone 4 (DFU mode)).
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Windows XP and Windows 7 users should run Redsn0w as ‘Administrator’ (right-click on the Redsn0w exe and select ‘Run as an Administrator’). Windows 7 users should run the exe in Windows XP compatibility mode (right-click on the Redsn0w exe and select Properties, then select the Compatibility tab and select Run this program in compatibility mode for Windows XP). Please ensure that you have launched the latest version of Redsn0w. Navigate back to the Redsn0w folder and launch the Redsn0w application.
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Step 5: Double click the Redsn0w zip file and extract the application to the Redsn0w folder.
(c) Now release the Power button while keeping the Home button pressed until your device’s screen goes black or iTunes pops up a message telling you that it has detected an iPhone in recovery mode. (b) Now simultaneously hold the Home button and keep the two buttons pressed for 10 seconds: (a) Hold the Power button on iOS device down for 3 seconds: You can follow these simple steps to put your iPhone in DFU mode: Step 4: You will now need to put your iOS device into the DFU mode.