How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

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These are instructions on how to jailbreak your iPhone 3G on the 4.0 or 4.0.1 firmware using RedSn0w for Mac and iTunes 9.2. The Windows version of this tutorial is here.

This tutorial can be used to jailbreak before applying the UltraSn0w unlock. You can find instructions on how to apply the unlock here. It will also hacktivate your device for those not with an official carrier.

Step One
Create a folder on your desktop called Pwnage

Download RedSn0w from here or here and place it in the Pwnage folder. Likewise, download the latest 4.0 firmware from below and place it in the same folder. If you wish to update to 4.0.1 you will need to download this firmware as well.

4.0.0 (3G): iPhone1,2_4.0_8A293_Restore.ipsw
4.0.1 (3G): iPhone1,2_4.0.1_8A306_Restore.ipsw

Extract the redsn0w app from the RedSn0w zip file by double clicking it.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Important: If you wish to remain at 4.0 then skip Step Two.

Step Two
Connect your iPhone to the computer and launch iTunes.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Select your iPhone from the list of devices on the left. Now hold down Option and click the Restore button. Restore is preferred as it won't create any wasted space on your iPhone.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Navigate to the Pwnage folder on your desktop and select the 4.0.1 firmware ipsw. Click the Choose button to continue.

How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Three
Once iTunes has finished updating your iPhone to the desired firmware open the Pwnage folder on your desktop and launch the redsn0w application from the redsn0w folder we extracted earlier.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Four
Once RedSn0w opens click the Browse button
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Five
Select the 4.0 firmware ipsw we placed in the Pwnage folder on our desktop then click Open.

Note: Select the 4.0 firmware ipsw even if you are on 4.0.1.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Six
Once the firmware has been verified click the Next button to continue.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Seven
RedSn0w will now prepare the jailbreak data
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Eight
From this window you can select the jailbreak options you would like.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Verbose boot displays detailed information on boot of your device and is generally only needed by developers and advanced users.

Make sure Cydia is selected. For this tutorial we will also select Custom boot logo and Custom recovery logo.

When you click to select each custom logo option a dialog window will appear asking you to select the image. Locate the image you would like to use then press the Open button.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

*Remember the rules for boot logos are: RGB or Grayscale format with Alpha channel and dimension below 320x480. If you would like to use the iClarified ones they can be found here: Boot Logo, Recovery Logo

Notice that RedSn0w has already selected to Enable multitasking, Enable homescreen wallpaper, and Enable battery percentage. If you do not need multitasking we would recommend deselecting it as it makes your iPhone 3G run very slow.

Click the Next button to continue
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Nine
Please plug your iPhone into the computer and make sure its OFF then click the Next button
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Ten
RedSn0w will now guide you through the steps to get into DFU mode. You can find more help with DFU mode here
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Hold down both the Home button and the Power button for 10 seconds.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Release the Power button and continue holding the Home button until RedSn0w detects the device.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Eleven
Your iPhone will now reboot
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Twelve
RedSn0w will then begin uploading the new RAM Disk and Kernel.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

Step Thirteen
Once this is complete you will be notified that RedSn0w is done. Click the Finish button. When your iPhone finishes rebooting (5 minutes or so) it will be jailbroken with Cydia on the SpringBoard.
How to Jailbreak Your iPhone 3G Using RedSn0w (Mac) [4.0, 4.0.1]

You can now continue to unlock your device using UltraSn0w with these instructions.

*As usual a big thanks to the iPhone Dev-Team for their hard work and contribution to the iPhone community.

kerdionu - August 15, 2010 at 1:21pm
it also works perfectly with 4.0.2
amango - July 17, 2010 at 7:45pm
hello folks, made sure to read thru all the threads before posting...i have an unpwned iphone 3g running 3.1.3 and trying to jB (then uL). 1. when i try to update as in step #2, i get the error \"iPhone could not be restored because the firmware file is not compatible\" -- do i need to update to iOS 4 via iTunes *first* and then begin this process? my understanding is that i would upgrade after going thru these steps. 2. after antennagate, itunes is now updating to iOS 4.0.1 -- will this update work or should i wait for an update from idev team (who i need to thank!)? thanks, in advance, for the help.
aelly - October 6, 2010 at 10:57pm
i got the same error like urs in 2nd step with 3g in current 3.1.3.. don\'t know what can be done. hope some1 can help on this. thanks
PHANTOM - July 17, 2010 at 5:09pm
Hey guys, I need you help. I upgrade my iphone 3G to 4.0 version, it was working great but now, everytime I try to launch youtube I get a message \"cannot connect to youtube\". I have tried almost everything and nothing works. What could I do? Thank you very much in advance
Johnny H. - July 13, 2010 at 5:37pm
Be advised that redsn0w 0.9.5 Beta is out. It worked well when I JB my 3G. The previous vers. had some issues with 4.0 OS. Seems to have been fixed. Also, I just noticed the tutorial link to redsn0w is down. iC may be updating the link. Cheers!
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