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Chronic Dev Team has just released Greenpois0n RC5 to apply untethered jailbreak on iOS 4.2.1 to all idevices. Greenspoison rc5 supports these idevices – iPhone 4, iPhone 3GS, iPad, iPod Touch 3G and iPod Touch 4G. After releasing GreenPois0n People are having different issues and problems with the GreenPois0n RC5.

Issue One: If you are stopped at ‘Greenpois0n initalized’ then follow the below solution

Fix One: Retry GreenPois0n again, except when you’ve entered DFU mode, don’t let go of the home button (iSurenix)

Issue Two: After jailbreak, the Loader does not install Cydia

Fix Two: Just download the latest RedSn0w, Click on Browse, Navigate to iOS 4.2.1 IPSW file, Click next, Click on Install Cydia, follow the instruction to put it in DFU. That’s it! The order doesn’t matter: run GP after redsn0w, or run redsn0w after GP (@MuscleNerd)

POd2g (Chronic Dev Team Member): Please verify you’ve 4.2.1. installed before starting gp. If you’ve Monte, please restore first.


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  On February 4, 2011(6 years, 3 months ago.)

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What Do You Think?

32 Responses

  1. GSDenny Says:

    Wifi not connecting after windows greenpoison rc5 on iPhone 4.

    Posted on February 7th, 2011 at 10:37 AM

  2. Nadavnet Says:


    Posted on February 7th, 2011 at 1:27 PM

  3. Graham Says:

    massive battery drain. iPhone4 on charge over night unplugged and 30 mins later i checked the time and battery is at 97%….

    Posted on February 8th, 2011 at 6:58 AM

  4. Help Says:

    i got tha same problem too, i can’t open cydia, it closes automatically.

    Posted on February 8th, 2011 at 4:00 PM

  5. Kote Says:

    Me too, any fix for this..
    Quite a battery eater for my iphone using win rc5b2

    Posted on February 9th, 2011 at 1:29 AM

  6. Razprs Says:

    I jailbroke iPod Touch 4g 4.2.1 with Greenpois0n and WiFi wont work anymore even after a full reset and restore 🙁 help

    Posted on February 9th, 2011 at 4:05 AM

  7. Batch Says:

    Any idea how to fix apps disappearing on greenpois0n rc5?

    Lost the App Store and also Calculator apps.

    Your help will be appreciated and thanks in advance.

    Posted on February 9th, 2011 at 12:14 PM

  8. Kimboslicesucks Says:

    I also have the same problem I open cydia but it seems to freeze while the loader spins and it takes me to the lockscreen and it keeps happening

    Posted on February 9th, 2011 at 10:27 PM

  9. Kimboslicesucks Says:

    My cydia does not initialize the filesystem it shows that it does and it returns to the lockscreen but has no effect

    Posted on February 9th, 2011 at 10:34 PM

  10. Nadavnet Says:

    restore first and then jb again using greenpoison rc5.good luck

    Posted on February 10th, 2011 at 8:46 PM

  11. chynissss. Says:

    my loader app shows up, but it wont load.

    Posted on February 13th, 2011 at 11:15 AM

  12. Arempee26 Says:

    GP did it things, I saw all the text was running on my iphone 4, but then at the end it says, panic; Weare hangin there…
    I tried about 3 times already, but at the end, it’s still doin the same thing.


    Posted on February 15th, 2011 at 4:17 AM

  13. Franck F. Says:

    The very same happens to me. I am helpless, I cannot find any solution. Thank you for your help.

    Posted on February 15th, 2011 at 7:20 AM

  14. Clarkvstewart Says:

    List my camera, calculator, compass, and app store too

    Posted on February 21st, 2011 at 3:36 PM

  15. Shane Says:

    I also lost appstore and camera. Any advice?

    Posted on February 22nd, 2011 at 8:45 PM

  16. Brendan Says:

    Hi, i Jailbroke my ipod touch 4g using green pois0n. And cydia installed.. Only problem is..Cydia wont open.. What should i do

    Posted on February 25th, 2011 at 5:53 AM

  17. akirawi Says:

    after greenpoison RC 6.1 on 3GS my keyboard stopped working, tapping on a text box doesn’t trigger the keyboard anymore!

    Posted on February 25th, 2011 at 1:57 PM

  18. mad-as-hell Says:

    i just tried to jailbreak my iphone 3GS and it froze on a black screen. now it wont turn on. aany hep???

    Posted on February 26th, 2011 at 2:19 AM

  19. Jeffo7474 Says:

    i am stuck in recovery mode

    Posted on March 5th, 2011 at 3:52 PM

  20. Jeffo7474 Says:

    i am stuck in recovery mode

    Posted on March 5th, 2011 at 3:52 PM

  21. Kkwalshiee Says:

    whenever i am almost done with jailbreaking, last second, it quits unexpectedly. i have a mac.

    Posted on April 1st, 2011 at 2:44 AM

  22. R J7076 Says:

    go to loader and try to reinstall. if that doesnt work,put anything purchased on to your itunes account, restore the ipod, and rejailbreak

    Posted on April 19th, 2011 at 6:25 PM

  23. Brooklynnskll Says:

    i insert my sim an its says sim failure..what should i do?

    Posted on April 29th, 2011 at 12:19 AM

  24. Bongeme Says:

    ya me to !!!!!!!!!!!!!!!!!!!!!!!!!!!      H E L P

    Posted on June 10th, 2011 at 7:07 AM

  25. Mason Says:

    i have already jailbroken my ipod touch second gen. 4.2.1 on greenpoison and i tried to download cydia afterwards.  It wouldn’t down load and had the” cog” like buffering shape i let it try to download but it wasn’t letting me do anything so i turned it off.  i then turned it back on and it goes from the apple to the green poison logo buffers like above,but doesn’t change from there. what do i do?

    Posted on June 25th, 2011 at 12:50 AM

  26. Jacqueline_Armitage Says:

    I jb my Verizon iphone4.2.6with greenpoison about 1 1/2 weeks later I received a message saying, sorry for inconvenience but the springboard has just crashed so u r running in safe mode. Mobile sub/strate/did/not/do/this it protected u from it.. Any extensions that support this have been disabled. Reboot or restart to return to normal mode… Well it will not reboot/restart… I’ve lost safari phone iPod mail settings camera calendar etc… How does one access the solutions that I read to try them out I’ve been without iPhone etc for over a week now I’m going nutZ here… Do I haveto buy a new phone or I’d this fixable?) pleeeease help…

    Posted on July 3rd, 2011 at 11:48 PM

  27. Jacqueline_Armitage Says:

    I guess nobody has experienced my major malfunction.. Spring board crashed stuck in safe mode will not restore or restart reboot or whatever to set it back to normal mode haven’t had phone mail cydia camera iPod and most of my apps.. If anyone has the slightest idea on how to fix my useless iPhone Verizon 4.2.6. Please reply

    Posted on July 9th, 2011 at 1:05 AM

  28. Jacqueline_Armitage Says:

    Aaaand I have no safari

    Posted on July 9th, 2011 at 1:07 AM

  29. dINA Says:

    I’m having problems with connecting to the internet, the loader icon is in my itouch now, i can getting running because of that.  Please help.. I was so close.

    Posted on July 11th, 2011 at 12:02 AM

  30. Nvretis Says:

    I have a jailbroken ipod touch that is stuck on the loading screen with the greenpoison logo on it.  When i plug into itunes for restore ipod freezes itunes.  any suggestions?

    Posted on November 4th, 2011 at 1:45 AM

  31. 45752fart Says:

    Whenever I try to download a app of installous my wifi bars disappear and then it fails.what do i do to fix it?

    Posted on November 27th, 2011 at 12:20 PM

  32. Chopsncheese Says:

    make sure you  change the settings so the iphone/ipod  never goes to sleep as it cuts your download when your screen times out

    Posted on January 25th, 2012 at 3:13 AM

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