Jailbreaking 4.2.1 3GS

Discussion in 'Jailbreaks and iOS Hacks' started by krisapp, Feb 13, 2011.

  1. krisapp macrumors newbie

    Joined:
    Jul 8, 2010
    #1
    Hi All,

    I have jail broken before on 4.1 i believe using jailbreakme.com it was ages ago and I dont remember everything I did.

    However my iphone has now been replaced and I would like to JB again tonight. I have downloaded 4.2.1 IPSW for 3GS and plan to do a full backup in iTunes that I can restore to if anything goes wrong.

    My phone is not network locked and I plan on using greenpois0n

    If anything goes wrong I can just restore as new iphone and restore my backup yes?

    Thanks

    krisapp
     
  2. krisapp thread starter macrumors newbie

    Joined:
    Jul 8, 2010
    #2
    Also another question to ad to this, my mate swears his friends Internet banking was compromised via Safari browser after he JB'd

    Is this at all possible?
     
  3. Baggy Spandex macrumors 6502

    Baggy Spandex

    Joined:
    May 23, 2009
    #3
    If your friend was on an unfamiliar or unsecured WiFi network, then anything is possible.
     
  4. krisapp thread starter macrumors newbie

    Joined:
    Jul 8, 2010
    #4
    Thanks baggy spandex.

    That is true, however the JB itself should not expose Safari to anymore security issues then on a unjb'd iphone??

    Any tips on my first post also?!
     
  5. krisapp thread starter macrumors newbie

    Joined:
    Jul 8, 2010
  6. PsstGreek macrumors 68040

    PsstGreek

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    Oct 21, 2010
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    Tampa Bay
  7. awadeee macrumors 68020

    awadeee

    Joined:
    Jan 21, 2011
    Location:
    Viper City
    #7
    If for some reason something goes wrong, you can restore your phone, and then restore from your backup to get your phone back to the way it was before. But as the poster above me said, jailbreaking your phone is perfectly safe.
     
  8. awadeee macrumors 68020

    awadeee

    Joined:
    Jan 21, 2011
    Location:
    Viper City
    #8
    This is just as safe as jailbreakme.com, that site is just candy coated so that newbies can jailbreak without having to do "complicated" steps.
     
  9. diegoesk macrumors regular

    Joined:
    Dec 19, 2010
    #9
    right. but you also run a higher risk of downloading Rogue apps...
     
  10. hackthatphone macrumors 68000

    hackthatphone

    Joined:
    Jul 28, 2010
    #10
    You should be jailbreaking with PwnageTool as it incorporates the iBook DRM protection fix that greenpois0n doesn't have.
     
  11. awadeee macrumors 68020

    awadeee

    Joined:
    Jan 21, 2011
    Location:
    Viper City
    #11
    +1.
     
  12. krisapp thread starter macrumors newbie

    Joined:
    Jul 8, 2010
    #12
    Soo where do I get pwnage tool and link for doco?? Is it the sticky in the top of this forum? Looks like that's for old 2.1 iOS ...
     

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