Step-by-step Tutorial: How to Jailbreak and Unlock Your iPhone 3GS Using RedSn0w 0.9.6b5 (Windows) [iOS 4.2.1]




UPDATE: Please think first, before you do something.

UPDATE2: If you have 05.13 baseband or lower – do not update to 4.2.1, use PwnageTool to create custom firmware!

This is step-by-step instructions on how to jailbreak and unlock your iPhone 3GS on iOS 4.2.1 firmware using RedSn0w 0.9.6b5 for Windows.

For iPhone 3G use this tutorial.

If you have an iPhone 3GS with the new bootrom you will only be able to perform a tethered jailbreak at this time. This means you will need Redsn0w’s assistance to boot into your jailbroken device.

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 very carefully before deciding whether to do this.

  1. There is no way to come back down from baseband 06.15, and there’s no hiding the baseband version from Apple. You’ll be voiding your warranty in a very obvious way.
  2. If some future baseband comes out with a critical fix, you won’t be able to update to it if it remains down in the 05.xx sequence (then again, you wouldn’t update to it if you wanted to keep your unlock anyway).
  3. Starting with FW 4.2.1 if you have 06.15 on your iPhone you won’t ever be able to restore to stock firmware (it will fail). You’ll need to only restore to custom IPSWs (then again, if you’re unlocker you should already be doing that).

Don’t update to 06.15 if you don’t need to, you can just jailbreak without unlocking using this tutorial! Only update baseband if you need the unlock and you’re stuck on baseband version 05.14 or 05.15, and you’re willing to assume the above risks. You can find out your baseband version in Settings -> General -> About -> Modem Firmware.

Those with an unlockable baseband and on a lower firmware should use PwnageTool instead to update without upgrading your baseband.

Step One
Create a folder on your desktop called Pwnage

Download RedSn0w from here or here. Save it in the Pwnage folder. Likewise, download the latest 4.2.1 firmware from below and place it in the same folder.

iPhone 3G iOS 4.2.1: iPhone2,1_4.2.1_8C148a_Restore.ipsw

Extract the redsn0w executable from the RedSn0w zip file into the same folder.
redsn0w 096b5 s1 500x358 Step by step Tutorial: How to Jailbreak and Unlock Your iPhone 3GS Using RedSn0w 0.9.6b5 (Windows) [iOS 4.2.1]

Step Two

***If you are already on iOS 4.2.1 you can skip this step.

Connect your iPhone to the computer and launch iTunes. Create a backup, since all your data on iPhone will be erased.

Read the rest of this entry >>>

, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

Firmware downloads




firmware Firmware downloads

Here are the direct download links for the latest iOS 7.x firmwares:

iOS 7.0.3:

iOS 7.0.2:

iOS 7.0:


Here are the direct download links for the iOS 6.x firmwares:

If you don’t know which firmware is for you, just check model number, which is written on the back side of the device and on the box.

iPad

iPhone

iPod touch

Apple TV


Here are the direct download links for the latest iOS 5.1.1 firmware:


Here are the direct download links for the iOS 5.1 firmware:


Here are the direct download links for the iOS 5.0.1 firmware:


Here are the direct download links for the iOS 5 firmware:


Previous firmwares:

iPhone 2G (EDGE): 1.00, 1.01, 1.02, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 2.0, 2.0.1, 2.0.2, 2.1, 2.2, 2.2.1, 3.0, 3.0.1, 3.1, 3.1.2, 3.1.3

iPhone 3G: 2.0, 2.0.1, 2.0.2, 2.1, 2.2, 2.2.1, 3.0, 3.0.1, 3.1, 3.1.2, 3.1.3, 4.0, 4.0.1, 4.0.2, 4.1, 4.2.1

iPhone 3GS: 3.0, 3.0.1, 3.1, 3.1.2, 3.1.3, 4.0, 4.0.1, 4.0.2, 4.1, 4.2.1, 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5

iPhone 4: 4.0, 4.0.1, 4.0.2, 4.1, 4.2.1, 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5

iPhone 4 Verizon: 4.2.6, 4.2.7, 4.2.8, 4.2.9, 4.2.10

iPod Touch: 1.1.4, 1.1.5, 2.1, 2.22.2.1, 3.0, 3.1.1, 3.1.2, 3.1.3

iPod Touch 2G: 2.1.1, 2.22.2.1, 3.0, 3.1.1, 3.1.2, 3.1.3, 4.0, 4.0.2, 4.1, 4.2.1

iPod Touch 3G: 3.1.1, 3.1.2, 3.1.3, 4.0, 4.0.2, 4.1, 4.2.1, 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5

iPod Touch 4G: 4.1, 4.2.1, 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5

iPad: 3.2, 3.2.1, 3.2.2, 4.2.1, 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5

iPad 2 Wifi: 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5

iPad 2 GSM: 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5

iPad 2 CDMA: 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5

Apple TV 2G: 4.1, 4.2, 4.2.1, 4.3 build 8F191m, 4.3 build 8F202, 4.3 build 8F305 (mirror), 4.3 build 8F455

Bootloader Images: 3.9 and 4.6.

Download iTunes

, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,