Open it, plug your device into your computer, and follow redsn0w's instructions. Steps: Download redsn0w for Mac or Windows. Redsn0w runs on already-upgraded un-jailbroken devices. iPod touch 3rd generation: 4.3.4 through 5.0, and 5.1.iPod touch 2nd generation (which includes devices sold as iPod touch 3rd generation 8 GB): 4.1 through 4.2.1Īnd tethered jailbreaks for iOS versions including:.iPhone 3GS: 4.1 through 4.2.1 4.3.1 through 4.3.3 5.0.1 and 5.1.1 (old-bootrom iPhone 3GS is untethered on all versions). ![]() Note: If Cydia is not displayed on your springboard after FIRST clicking the cydia tab through the loader.app, you may need to simply restart your iDevice.Īs you can see the process for jailbreaking untethered on the iOS 4.2.1 firmware is very simple! Let us know if you need any help, and we will gladly help you as best as we can.Redsn0w is a tool for Mac and Windows that provides untethered jailbreaks for iOS versions including: Once Cydia has been successfully installed, you can delete the loader.app. When you click the loader icon, you simply need to click on the Cydia tab and the loader.app will begin installing Cydia to your iDevice. When your iDevice does respring into a jailbroken state you will need to click the loader icon on your SpringBoard to install Cydia (the 3rd party installer) Now you just need to sit back and wait for GreenPois0n to respring your iDevice into a jailbroken state. Step 4) – Once your iDevice has successfully entered DFU mode, GreenPois0n will begin jailbreaking your iDevice. Release sleep button continue holding home (10 seconds).Continue holding sleep press and hold home (10 seconds).Press and hold the sleep button (3 seconds).Note: In case this is your first time jailbreaking, here is what to expect when putting your iDevice into DFU mode: Please follow the instructions exactly to avoid errors with your jailbreak. GreenPois0n provides on-board instructions for putting your iDevice into DFU mode. Once you click the jailbreak button you will then need to put your iDevice into DFU mode. Once your iDevice is successfully plugged into your computer, you can begin the jailbreaking process by clicking the jailbreak button (however make sure you are anticipating what comes next). When GreenPois0n is up and running you will now need to plug your iDevice into your computer via USB. Once GreenPois0n has been extracted to your desktop you are going to need to double click the greenPois0n.exe file. You can do this by right click on the gp_win_rc5_b2.zip file and clicking the extract button. Step 3) – Once you have downloaded GreenPois0n RC5 for windows, you are going to need to extract GreenPois0n to your desktop. You can do this by clicking our download link below. Step 2) – Once you are running a clean install of the iOS 4.2.1 firmware, you are going to have to download GreenPois0n RC5 for Windows (Want the tutorial for Mac OS X? Click here). This is the only firmware version that GreenPois0n RC5 supports. Step 1) – The first thing you are going to need to do is ensure your iDevice is running the iOS 4.2.1 firmware. ![]() Note: If you followed our last tutorial on using GreenPois0n RC5 you will notice that the steps are almost identical. ![]() Keeping the above points in mind, we are going to move ahead and start the tutorial.
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