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HOW TO DOWNGRADE FROM iOS 5 BAck to 4.X
1. Your cellular service will no longer work. You won’t want to keep this on your phone. Only install it if you want a nose around.
2. To downgrade:
- Put the phone in DUI mode by plugging it into iTunes, holding the home and lock buttons...
Unlock the iPhone 4, 3GS, 3G Using UltraSn0w
These are instructions on how to unlock the iPhone 4, iPhone 3GS, and iPhone 3G for use with any GSM cellphone carrier using UltraSn0w. This will work with the iOS 4.2.1 firmware if you are on the 06.15.00 baseband.
Before you can follow...
Jailbreak-Unlock iPhone 3G, 3GS firmware 4.2.1 Using RedSn0w (Mac)
IMPORTANT FOR UNLOCKERS
During this process you can update your baseband to the 06.15 version. If you are on 05.14 or 05.15 or higher you will need to do this to unlock. You do not need to do this for jailbreak only. Please read the following...
Jailbreak/Unlock iPhone 3GS Firmware (3.1.3) Using PwnageTool [Mac]
Step One
Make a folder called “Pwnage” on the desktop. In it, you will need a couple of things. PwnageTool 3.1.5, found here or here
You will also need the 3.1.3 iPhone firmware.
3.1.3 (3GS): iPhone2,1_3.1.3_7E18_Restore.ipsw
When...
Unlock/Jailbreak iPhone 3G on OS 3.1.3 Using PwnageTool (Mac)
Step One
Make a folder called “Pwnage” on the desktop. In it, you will need a couple of things. PwnageTool 3.1.5, found here
You will also need the 3.1.3 iPhone firmware.
3.1.3 (3G): iPhone1,2_3.1.3_7E18_Restore.ipsw
When downloading...
Jailbreak iPhone 3G on 3.1.2, 3.1.3 Using RedSn0w (Windows)
Step One
Create a folder on your desktop called Pwnage
Download RedSn0w from here and place it in the Pwnage folder. Likewise, download the latest 3.1.2 firmware from below and place it in the same folder.
3.1.2 (3G): iPhone1,2_3.1.2_7D11_Restore.ipsw...
Unlock/Jailbreak Your iPhone 2G on OS 3.1.3 Using PwnageTool (Mac)
First make a folder on the desktop. In it, you will need a couple of things. The two bootloader files:
- BL 3.9
- BL 4.6
Pwnage 3.1.5, found here.
You will also need the 3.1.3 iPhone firmware. 3.1.3 (2G): iPhone1,1_3.1.3_7E18_Restore.ipsw
When...
Unlock/Jailbreak Your iPhone 2G on 3.1.3 Using RedSn0w (Mac)
Step One
Create a folder called Pwnage on your desktop.
Download the following files and place them in the Pwnage folder you just created:
- RedSn0w
- BL 3.9
- BL 4.6
- 3.1.3 (2G): iPhone1,1_3.1.3_7E18_Restore.ipsw
Double click the redsn0w...
Unlock/Jailbreak Your iPhone 2G firmware (3.1.3) Using RedSn0w (Windows)
RedSn0w is a jailbreak utility released by the iPhone Dev-Team. It adds the ability to select custom boot logos for your iPhone during the jailbreak process.
Step One
Create a folder called Pwnage on your desktop.
Download the following...