- Post last updated Feb 8th, 2011 @ 5:00pm -
*****Warning, if your using an iPhone 4 carrier-unlock DO NOT update to original firmware*****
Click here if you want to check out the "Read ME" file that comes with the "gp_win_rc5_b4" software.
1) Download the GreenPois0n Jailbreak Tools here:
- Mac OS X = gp_mac_rc5_b4
- Mirror Site = http://mirrors.ih8sn0w.com/gp_mac_rc5_b4.zip
- WINDOWS = gp_win_rc5_b4
- Mirror Site = http://mirrors.ih8sn0w.com/gp_win_rc5_b4.zip
3) Restore your iDevice to iOS 4.2.1 original firmware (if you’ve never jailbroken before, or are already on iOS 4.2.1... skip this step.) & (NO, the 4.2.6 next to the Verizon iPhone lnk is not a mis-print.)
*** NOTE: Users having iDevices which are already jailbroken (Tethered) via Redsn0w - You can also try GreenPois0n without restoring to a fresh iOS 4.2.1 ***
- iPhone 4 (4.2.1)
- iPhone 4 - Verizon - (4.2.6) - included as of RC5 B4
- iPhone 3gs (all BootRoms) (4.2.1)
- iPad 1G (4.2.1)
- iPod Touch 4G (4.2.1)
- iPod Touch 3G (4.2.1)
- iPod Touch 2G (all BootRoms) (4.2.1)
Ok... so here is the video guide on how to Jailbreak iOS 4.2.1 via Green Pois0n for Windows rc5_b4
*** You can see the video here in up to 1080p, or view it on YouTube by clicking on the YouTUBE link in the lower right. ***
Now on to the step by step Mac OS X tutorial:
*** Sorry guys, no videos yet ***
- Open GreenPois0n and connect your idevice on firmware iOS 4.2.1.
- Click on jailbeak and prepare to follow directions. You must be precise and follow the exact directions as shown.
- Press and hold the sleep button, its the top button on your idevice.
- While holding the sleep button, hold the home button on your iphone. You then should be holding both buttons down at the same time on your idevice.
- After the countdown timer finishes or your ipad turns off let go of the top sleep button but do not let go of the home button. If done correctly you will see that GreenPois0n begins the jailbreak process.
Your iPhone should begin to jailbreak and it will flash white then go black, it will then show lines of code then reboot.
If all went well and your iPhone 4 rebooted you can now scroll over to the right/2nd page and open the icon called loader. The sources should load and you will see the option to install cydia. Tap and install cydia and you can now enjoy your jailbroken iPhone.
TroubleShooting:
If stuck on Greenpois0n initializing after trying to jailbeak or the jailbreak isn’t working you can try the following work arounds.
Solution 1 – Reboot computer, rerun Greenpois0n and while following the directions to jailbreak do not let go of the home button during the entire process of jailbreaking.
Solution 2 – Go to your OSX hdd home folder and delete the ibss and kernal cache files. Open finder on your computer and under devices choose your hdd name, you will see an ibss file and cache file so just delete those, reboot your computer and try Greenpois0n again.
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