Jailbreak iPhone and iPod Touch OS 3.1.3 with RedSn0w 0.9.4

The latest iPhone OS 3.1.3 firmware updates the Baseband of your iPhone 3GS and 3G hence making it impossible to unlock these device. Fortunately iPhone 2G users are on the safe side in case of unlock because iPhone 2G Baseband remain intact while updating to iPhone firmware 3.1.3 (provided that you already have a have jailbroken device).

MuscleNerd of the Dev-team has confirmed that using RedSn0w 0.9.4 you can jailbreak iPhone OS 3.1.3 on the following devices:

• iPhone 3G (no unlock available)
• iPhone 2G (no unlock available)
• iPod Touch 2G (non-MC model only)
• iPod Touch 1G.

IMPORTANT

• Don’t go near this if you have 3GS, newer iPod Touch 2G, or any iPod Touch 3G.
• If you depend on unlocking the iPhone, avoid this guide. The new Firmware 3.1.3 updates the Baseband to 05.12.01.
• This guide is for iPhone 2G and those iPhone 3G users ONLY (No unlock method available).

Now that you’ve read the important part above, follow the steps below to jailbreak iPhone 2G 3.1.3 iPhone 3G 3.1.3 firmware.

Step 1

• RedSn0w 0.9.4 Windows (Direct Download Link)
• RedSn0w 0.9.4 MAC (Direct Download Link)
• iTunes 9.0.3 (Direct Download Link)
• OS 3.1.3 for iPhone 2G (Direct Download Link)
• OS 3.1.3 for iPhone 3G (Direct Download Link)
• OS 3.1.3 for iPhone 3GS (Direct Download Link)

Step 2

You can skip this step if you’re already on firmware 3.1.3.

Make sure you have the latest version of iTunes. Open the iTunes, select your device from the left navigation pane.

Hold down the SHIFT key on Windows or ALT key on Mac and hit the Restore button in iTunes.

Navigate to the downloaded firmware 3.1.3 for your device and select the firmware file (.ipsw) and hit Open.

iTunes will start restoring your iPhone firmware to iPhone OS 3.1.3.

Step 3

Once your iPhone/iPod Touch is updates to OS 3.1.2, run the downloaded RedSn0w file.

Step 4

Hit the Browse button and provide it the downloaded firmware 3.1.2 file because RedSn0w 0.9.4 will not recognize iPhone OS 3.1.3.

Step 5

RedSn0w will verify your firmware file. Once done, hit the Next button.

Step 6 (for iPhone 2G users ONLY. Others please skip to Step 7)

To unlock iPhone 2G, select Install Cydia and Unlock options and provide the bootloader files.

If you just want to jailbreak iPhone then choose Install Cydia and hit next.

Step 7

On the next screen, check mark your desired options. For the purpose of this guide just choose Install Cydia and hit next. Select custom logos if you want them too. Hit Next.

Step 8

Read the on screen instructions to put your iPhone into DFU Mode.

Once you’ve entered into DFU Mode, RedSn0w will do its work and on successful completion, your iPhone/iPod Touch will reboot.