This guide works for following devices running iOS 4.2.1/4.1
- iPhone 4, iPhone 3GS
- iPad (Any Generation)
- iPod Touch 4G, 3G, 2G
Notice:
- If you want to jailbreak your device with this guide, make sure your device and its iOS version are in the list above. [Read: How to Check the iOS version of Your iDevice]
- It does NOT support any other iOS version or iOS devices that are not listed above!!!
Preparations:
- 2.1 3G 3GS 4.2.1 4G Ads app Apple baseband download Firmware GreenPois0n Howto iOS iOS 4 iOS 4.1 iOS 4.2 iOS 4.2.1 iPad iPhone iPhone 3G iPhone 3GS iPhone 4 iPod iPod Touch iPod Touch 2G iPod Touch 3 iPod Touch 3G iPod Touch 4 iPod Touch 4G jailbreak Mac POI redsn0w sed tethered tethered jailbreak Tutorial Unlock untethered untethered jailbreak.
- Step: 02 Then Download Greenpois0n iOS 4.2.1. Download Greenpois0n Mac OS X macrc61.zip; macrc61.zip; Download Greenpois0n Windows winrc6.1.zip winrc6.1.zip; step: 03 Before Greenpois0n jaikbreak iOS 4.2.1 Backup your data using i Tunes. Step: 04 Next Extract the Greenpois0n and zip file to new folder then run Greenpois0n run as administrate.
- Point your browser to www.greenpois0n.com and click on the Mac link to download Greenpois0n tool for Mac. After you save the archive and extract the files run Greenpois0n. Once you have upgraded your iPad to iOS 4.2.1 as instructed above connect it to your computer using the USB cable and quit iTunes in case it is open.
The Chronic Dev Team released their untethered jailbreak, Greenpois0n for iOS 4.2.1. https://locanreta.tistory.com/6. This jailbreak is now available for Mac and Windows users. If you’re on Windows, you can follow this brief overview on how to jailbreak with Greenpois0n. Download Greenpois0n RC5 B2 for Windows to Untethered iOS 4.2.1 Jailbreak Few days back Chronic Dev Team had released Greenpois0n RC5 untethered 4.2.1 jailbreak on all idevices. Unfortunately it was only for Mac OS X and Windows version is yet to be made available.
Notice: If you already made a backup of your device or don’t want to back up it, please skip the first 2 steps below and download jailbreaking tool directly.
However, the backup is always suggested in case you lose important information during jailbreaking.
Step 1: Download latest iTunes HERE Download phoos from galaxy to mac.
You can skip this step if you already have iTunes installed.
Step 2: Back up your device:
- Plug into your device and launch iTunes
- Right click the device name in the sidebar list
- Select Back Up and wait for the sync to finish
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Ready to Go!
Step 1. Connect your iPod touch to your computer via USB cable.
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Step 2. Extract the downloaded .zip file and run Greenpois0n.
Step 3. Follow the instructions to put iPod touch into DFU mode.
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- Press and hold the sleep button for 2 seconds
- Continue holding sleep; press and hold home for 10 seconds.
- Release sleep button; continue holding home for 15 seconds.
https://sherenew.weebly.com/google-wifi-download-for-mac.html. Step 4. The jailbreak will start automatically when the device is go into DFU mode. Please wait and don’t disconnect the device.
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Step 5. Greenpois0n will show the Complete button and your iPod touch will start to running commands, please just wait.
Step 6. The jailbreaking is complete after your device reboots automatically. Please open the Loader app from the home screen and install Cydia. It may take several attempts, please try again if it fails.
The jailbreak is done! Have fun with your untethered jailbreak iOS 4.2.1 on iPod touch. How to download flans mod 1.12.2 mac.