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  • iPhone OS 3.1 - All you need to know
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    It's been quite a while since Apple released the OS 3.1 for iPhone and there's been a lot of confusion regarding it's Jailbreak Status etc. Therefore, here's a summary of do's and dont's
    • According to ChronicDev, the 3.1 GM seed is still vulnerable.
    • It has been confirmed by MuscleNerd from DevTeam that iTunes 9 doesn't interfere with jailbreaking so you can update iTunes <s>but make sure that you do not update your device firmware to 3.1 yet if you want to jailbreak</s>. UPDATE: Jailbreak for OS 3.1 has been released but for the iPhone 2G, iPhone 3G and iPod Touch 1G ONLY and NOT iPhone 3GS, iPod Touch 2G and iPod Touch 3G! Therefore, update only if you have older hardware
    • Saurik confirms once you update to 3.1, there's <s>no way to downgrade</s> to an earlier version as iTunes no longer signs the older firmware. Therefore, if you do not have your ECID information saved, <s>you're completely stuck</s>! For those who have the information saved, there should be a solution out soon. UPDATE: 3.1 can now be downgraded to 3.0 but remember, the baseband is not downgraded along with the firmware, so you might still be permanently locked even though you can now jailbreak 3.1 in future.
    • The new firmware also includes a new baseband which means none of the current unlocking tools will work. Therefore, if you upgrade an iPhone 3G with bootloader newer than 5.8 or an iPhone 3GS, there are chances that your device might get permanently locked.

    Verdict: If you EVER want to jailbreak and unlock your iPhone 3G / iPhone 3GS again, DO NOT UPDATE YET!
    This article was originally published in forum thread: iPhone OS 3.1 - All you need to know started by sayam View original post
    Comments 220 Comments
    1. z28kid's Avatar
      z28kid -
      I was not a big jb guy and this being my first iphone jb i was not aware of the iBSS and iBEC files. Now its too late for me to capture those files. On a good note i have the ECID saved... i think. I just grabbed it and put the ECID into a txt file and saved it
    1. armandoqrt's Avatar
      armandoqrt -
      well what id the day apple released the firmware my iphone froze and i had to restore it? of course i didnt restore it... i just let it the way it was... it froze because i deleted all the stuff i had directly from the phone itself... but when itunes asked me to update i said no... im not in a bad position here am i? id like to know what you guys think =)

      well what if the day apple released the firmware my iphone froze and i had to restore it? of course i didnt restore it... i just let it the way it was... it froze because i deleted all the stuff i had directly from the phone itself... but when itunes asked me to update i said no... im not in a bad position here am i? and what information this article is talking about? when it says that if you have your information and stuff... what is that? id like to know what you guys think =)

      how do you get the ibss and things like waht what is that man?
    1. xgus69's Avatar
      xgus69 -
      the only reason i'd want to upgrade is for that application icon arranging addon on itunes that only works with 3.1 os, unless someone comes up with a program that we can use on windows, I wouldnt want to upgrade at all.. I am very happy with 3.0
    1. z3r01's Avatar
      z3r01 -
      apple are a bunch of cock blockers sometimes lol
    1. scottjl's Avatar
      scottjl -
      why do people even need to be reminded of this..? sheesh..
    1. zguy916's Avatar
      zguy916 -
      Sucks had to restore/ updated to 3.1 on my 3gs ?!?! I have my purplera1nyday file saved from geohot and I did the ecid shsh on cydia but I think that doesn't matter anymore well if anyone can give me some info for 3gs's that updated to 3.1 good or bad ,,,, that would be nice!!!
    1. StealthBravo's Avatar
      StealthBravo -
      ^ I agree. lol
    1. Poseidon79's Avatar
      Poseidon79 -
      ^^^ Because every single day thousands of NEW people buy iPhones and thousands more stumble upon the "jailbreak" and "unlock" concepts.
    1. alpawa's Avatar
      alpawa -
      Quote Originally Posted by TheSlimOne View Post
      I agree completely
      As do I...
    1. macgirl3G's Avatar
      macgirl3G -
      lost my Jailbrak, in a monent I was speaking with a coworker I saw that my iPhone 3GS was doing the upgrade process which I never choose, maybe iTunes made for me if I did not press the cancel button, damm.

      I can live with it, but I also lost the tethering ability
    1. theman12321's Avatar
      theman12321 -
      hey so i have a iphone 3g and i upgraded to 3.1 does that mean i will nvr be able to jailbreak again and i do not need to unlock or anything i just want to jb
    1. VeXeD's Avatar
      VeXeD -
      ^^ I'm one of those folks...

      I've always been a die hard Blackberry user till my friends bought the 3GS and sold me his 3G.

      Last week I jailbreaked (jailbroke... term?) and unlocked and I must say that this is the best phone I've ever had the pleasure of using.

      But last night for whatever crackhead reason I wanted to start fresh and "upgraded" via itunes (after reading not to three days ago!!!).

      The rest is history...

      Oh and message to Apple... I do plan on buying another iPhone but not if I can't unlock it. I'm sure thousands of others feel the same.

      Great forum you guys/gals have going here btw.
    1. iphonefreakify's Avatar
      iphonefreakify -
      I haven't saved IBSS/IBEC, but i didn't updated to 3.1 so it means coming jailbreak is not for me? no solution at all?????

      P.S I have 3G S.
    1. sLevin1fo's Avatar
      sLevin1fo -
      I just bought a 16GB 3GS and Jailbroke it to try it out. I like it. But I was going to exchange it for the 32GB. Now that I can not restore to a 3.0.1 ipsw before returning it. Am I SOL?
    1. sayam's Avatar
      sayam -
      Quote Originally Posted by Cokeman View Post
      I got my iBSS & iBEC the day I got my phone. My sister & brother in law got there iPhone 3GS's yesterday. Is there any way they can get the files off of their phones? They both want to jailbreak. I told them not to update anything yet.
      If they are still on 3.0 or 3.0.1, follow the normal procedure to obtain those files
    1. deadwilder's Avatar
      deadwilder -
      Oops... too late.
    1. sayam's Avatar
      sayam -
      Quote Originally Posted by iphonefreakify View Post
      I haven't saved IBSS/IBEC, but i didn't updated to 3.1 so it means coming jailbreak is not for me? no solution at all?????

      P.S I have 3G S.
      What you can do is get those files NOW. Then, when the jailbreak solution is out, follow the instructions to upgrade and jailbreak and maybe even unlock
    1. chad2ss's Avatar
      chad2ss -
      Quote Originally Posted by sayam View Post
      What you can do is get those files NOW. Then, when the jailbreak solution is out, follow the instructions to upgrade and jailbreak and maybe even unlock
      how can you do this if you need to restore to get them?!
    1. StealthBravo's Avatar
      StealthBravo -
      You will not need your IBSS/IBEC for the 3.1 jailbreak. You might need them for future firmwares tho. The new tool will be amazing
    1. timmyinpajamas's Avatar
      timmyinpajamas -
      Quote Originally Posted by sayam View Post
      What you can do is get those files NOW. Then, when the jailbreak solution is out, follow the instructions to upgrade and jailbreak and maybe even unlock
      but if itunes doesnt let 3gs restore to 3.0 or 3.0.1 anymore how can u put phone into dfu to retrieve those files?? .. i have a 3gs jailbroken wit 3.0.1 .. but how can i retrieve those files now? i thought i couldnt anymore .. any input is appreciated .. thanks