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Limera1n has been released for all iOS devices including: iPhone 4, iPhone 3GS, iPod touch 4G / 3G, iPad running iOS 4.1, and iOS 3.2.2 respectively. Limera1n is currently available for Windows only, however a Mac and Linux version will be available soon.

Limera1n

The following instructions will help you jailbreak iOS 4.1 on iPhone 4 and iPhone 3GS using Limera1n.

NOTE: If you rely on an unlock, do not update to iOS 4.1 yet as doing so will upgrade your baseband, making it impossible for now to unlock. Either use TinyUmbrella to update to iOS 4.1 without update baseband (instructions here), or wait for PwnageTool which will help you cook custom firmware files for iOS 4.1 without the upgraded baseband.

Step 1: Download Limera1n from here.

Step 2: Connect your iPhone via USB to your computer and click on “make it ra1n” as seen in the screenshot below.

Limera1n for Windows

Step 3: Now follow the following steps in this order:

  • Now wait for the device to enter recovery mode:

1

  • Now hold “Home” + “Power” buttons:

2

  • Release the “Power” button:

3

  • now wait for the device to enter DFU mode:

4

Step 4: Once you are done with this, you will have the limera1n logo on your iPhone’s screen. Limera1n will now inject the bootrom exploit to pwn your device forever!

Step 5: Jailbreak is done!

5

Step 6: Now start Limera1n app from your iPhone, and install Cydia as shown in the screenshots below.

Limera1n 2

Step 7: Now simply restart your device and enjoy the jailbreak!

You can also alternatively follow the step by step guide for jailbreaking iOS 4.1 using Limera1n in the video embedded below.

Unlock for iOS 4.1 (Old Baseband)
There is currently no way to unlock your iPhone on the latest 05.14.02 baseband. If you have managed to preserve your baseband while upgrading to iOS 4.1 using TinyUmbrella, you can use the existing version of Ultrasn0w to unlock your iPhone on iOS 4.1. Step by step instructions for unlocking can be found here.

Download Limera1n for Windows
Download iOS 4.1 for iPhone 4 and 3GS

UPDATE 1: Follow the step by step instructions posted here to jailbreak iPod touch 4G / 3G on iOS 4.1 using Limera1n.

UPDATE 2: Follow the step by step instructions posted here to jailbreak iPad on iOS 3.2.2 using Limera1n.

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