Are you looking for the best option to jailbreak your iPod Touch 4G? There are many jailbreak options available for your iPod Touch 4G running iOS 4.2.1. The two most prominent options are iPhone Dev Team’s Redsn0w and Chronic Dev team’s GreenPois0n.
Out of the two available jailbreak options, Chronic Dev Team’s GreenPois0n is more suitable for jailbreaking iOS 4.2.1 on your iPod Touch 4G.
iPod Touch 4G iOS 4.2.1 Untethered Jailbreak
GreenPois0n provides an untethered jailbreak on your iPod Touch 4G for iOS 4.2.1. Untethered jailbreak implies that you need not connect your iOS device to the computer each time you want to boot it. The process of jailbreaking iPod Touch 4G using GreenPois0n is quite simple and explained here. You may follow the easy step–by-step instructions to successfully jailbreak your iOS device.
Before you attempt jailbreaking process on your iPod Touch 4G, you should be aware that it will void the warranty on your product. You should proceed with the jailbreaking at your own risk.
Also, before you start executing the steps mentioned below, ensure that you have first gone through all steps and are well aware of what you are doing. Incorrect following of the instructions can lead to bricking of your iOS device; hence, proceed with caution.
Step 1: Download the latest version of Greenpois0n and update your iTunes software to the current version.
Step 2: Connect your iPod Touch 4G to the computer with the help of data cable and launch the downloaded GreenPois0n application. Once the software is up, press the jailbreak button on the main screen.
Step 3: This step requires that your iOS device is in DFU mode. You can find the onscreen instructions on the software window. Religiously follow the steps to shift your device to DFU mode.
First, hold the sleep button for 3 seconds. Second, keep holding the sleep button and simultaneously get hold of the Home button as well, continue holding them for another 10 seconds. Third, keep holding on to the Home button and release the Sleep button. When your device enters the DFU mode, release the Home button as well.
If you find any difficulty while shifting your iOS device to DFU mode, you should try again with better timings.
Step 4: When your iPod Touch 4G has entered DFU mode, GreenPois0n will start the jailbreaking process. The process takes some time, be patient and do not disconnect the iPod Touch 4G and the computer at this stage.
Step 5: When the jailbreaking process will finish, the software will prompt you that the device has been successfully jailbroken. You can detach your iPod Touch 4G from the computer now. If everything went well, you should now be running an untethered jailbroken iOS 4.2.1 on your iPod Touch 4G.
To completely enjoy your jailbroken iPod Touch 4G, you need to install Cydia on your device. You can find the launcher on your device’s home screen. Launch the launcher to install Cydia on your iOS powered device. Cydia is the source of all jailbreaking software applications.
Now, to install your favorite jailbreak apps, just search Cydia and click ‘install’ to install the desired software to your device.