Persistent Dev Crew has simply made to be had for obtain Greenpois0n RC5 to jailbreak iOS four.2.1 so untethered with out SHSH required. This primary model of RC5 Greenpois0n is for the Mac OS X . Home windows and Linux variations are coming quickly. Just right information, all iPhone / iPod iPad are involved.


Greenpois0n RC5 is appropriate with:


  • iPhone 3G
  • iPhone 3G
  • iPhone four

iPod Contact

  • iPod Contact 2G
  • iPod 3G
  • iPod 4G


  • iPad Wi-Fi
  • iPad Wi-Fi + 3G

The next directions will will let you jailbreak iOS four.2.1 on iPhone four, 3GS, iPod contact 2G/3G/4G, iPad and Apple TV 2G the usage of GreenPois0n.

NOTE: In case your iPhone four depend on an unencumber, don’t replace to iOS four.2.1 but as doing so will improve your baseband, making it unattainable for now to liberate.

Step 1: Obtain GreenPois0n from the hyperlink given under.

Step 2: Join your iPhone by means of USB to your pc and click on on “Jailbreak” as considered within the screenshot under.


Step three: Now practice the next onscreen directions to enter DFU mode:

  • Press and grasp the sleep button for two seconds
  • Proceed retaining sleep; press and dangle residence for 10 seconds.
  • Unlock sleep button; proceed preserving house for 15 seconds.

Step four: GreenPois0n will now begin “Jailbreaking” your iOS tool untethered on four.2.1.


Step 5: Your iPhone, iPad or iPod Contact will have to now be efficiently jailbroken on iOS four.2.1. Now begin “Loader” discovered on the homescreen and set up Cydia.


Many customers are reporting that they’re caught on “Greenpois0n Initialized” whereas seeking to jailbreak iOS four.2.1 with greenpois0n RC5. There’s no respectable repair for that, on the other hand following workarounds are reportedly working for some customers:Are attempting on Smooth iOS four.2.1 InstallBackup your whole information and set up iOS four.2.1 to your instrument. Prior to you sync, jailbreak it with Greenpois0n.

Sudo Open Greenpois0n

  • Run Terminal on Mac
  • Kind ‘sudo open ’ after which drag the on Terminal. Then press Enter/Return. Observe:sort sudo open with out charges and provides an area after open.
  • Greenpois0n will open, now are attempting the jailbreak.


Download Greenpois0n RC5 for Mac OS X.

Obtain iOS fo 4.2.1 for iPhone four, 3GS, iPod contact 4G / 3G / 2G and iPad

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