How To Jailbreak iOS 4.0.2 Using Redsn0w For iPhone 3G Users [Windows]

News | Sunday August 8 2010 11:28 AM | Comments (0) Tags: , , , , ,

Here are some points to note before you proceed.
Do not forget to backup your iPhone before you proceed. You can
After the jailbreaking process is complete, do not forget to checkout our article on
. Also, remember to
Please note that this guide is only meant for Windows users. Mac users can checkout this
Redsn0w will NOT unlock your iPhone 3G.
to unlock your iPhone 3G after you have successfully updated and jailbroken iOS 4, iOS 4.0.1.
Please ensure you are running iTunes 9.2 or later.
Redsn0w does not work on iPhone 3GS or iPhone 4.
” on your desktop.
to download the latest iOS 4.0.2 firmware file (iPhone 1,2_4.0.2_8A400_Restore.ipsw) for iPhone 3G and save it in the same folder.
firmware file (iPhone 1,2_4.0_8A293_Restore.ipsw).
Connect your iPhone 3G to the computer, which should automatically launch iTunes.
' section on the left pane of iTunes, select your iPhone 3G device. Now, hold the Shift key down and click the '
' button.
Navigate to the Pwnage folder on the desktop and select the downloaded iOS 4.0.2 firmware file (
iPhone 1,2_4.0.2_8A400_Restore.ipsw
). Click on the '
' button to let iTunes update your iPhone with the required firmware.
Navigate back to the Pwnage folder and launch the Redsn0w application.
You will be asked to select the corresponding IPSW file. Click on the Browse button and select the iOS 4.0 firmware file (
iPhone 1,2_4.0_8A293_Restore.ipsw
You need to use the iOS 4.0 firmware file in this step. If you use iOS 4.0.2 file then you will get the ”
Unable to recognize specified IPSW” error message.
Redsn0w will verify the firmware file and inform you if it has successfully identified it. Click on '
' to proceed.
Redsn0w will now start preparing the jailbreak data.
You will now be prompted to select the jailbreak options you would like. Check the following options. A few of these may have already been selected by default.
' offers detailed booting information to users. This may not be necessary for common users and need not be selected. You may also choose to not check '
' options if you prefer the default icons. However, if you wish to provide your own boot and recovery logos, do remember that these images have to be PNG files in RGB or grayscale mode and inside 320×480 resolution.
' to continue. You will now be prompted to switch OFF your iPhone 3G and plug it to the computer. Follow the instructions and click on '
You will now need to put your iPhone 3G into the DFU mode. Redsn0w will take you through the necessary steps:
(c) Now release the Power button while keeping the Home button depressed. Redsn0w will now identify the device:
Your iPhone 3G should rebootnow.
You will now be notified once the jailbreaking process is complete. Click on the '
' button to exit the application.
Your iPhone will reboot once again (which could take approximately 5 minutes). After it has rebooted, your iPhone 3G should be successfully jailbroken. You should find Cydia jailbreak app on your iPhone 3G's home screen.
Hope this helped. Please don't forget to drop us a line to tell us how it goes.

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