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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. chad2ss's Avatar
      chad2ss -
      Quote Originally Posted by StealthBravo View Post
      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
      lol sounds good SB.... looks like you have the scoop on something beautiful.
    1. iphonefreakify's Avatar
      iphonefreakify -
      Quote Originally Posted by chad2ss View Post
      how can you do this if you need to restore to get them?!
      +1 , i must go through restore process so??
    1. HAVOKGT's Avatar
      HAVOKGT -
      i also didnt save files talked about but i havent upgraded to 3.1... any help appreciated!
    1. djfubar's Avatar
      djfubar -
      *First if you don't already have Quickpwn22-1 go here and download it: http://www.megaupload.com/?d=H4BLU49J
      -You will also need 3.0 firmware there are numerous websites to get the 3.0 firmware

      *When you have both downloaded you will have to put your iPhone or iPod Touch into DFU mode,If you don't know how to put your iPhone or iPod Touch this is how(iPhone or Ipod Touch has to be plugged into your computer):
      -Hold the Power Button+Home Button for about 8seconds till you hear your computer makes that ping noise(like when you connect or disconect your iphone or ipod touch).
      -After hearing the ping noise let go of the Power Button and keep holding the Home Button for 10-12seconds then let go of the Home Button and your iphone or ipod touch should be in DFU mode.

      *Open Quickpwn22-1 in the selection menu pick the firmware 3.0, then open iTunes and iTunes should recognise that your iphone or ipod touch is in DFU/Restore mode pick your device on iTunes then Hold the Shift Key and click on Restore Desktop Browse menu will pop up find 3.0 firmware where you have it saved on your pc select it and restore when and iTunes will restore your iphone or ipod touch. When it is done your device should be back to v3.0 and then you will be able to re-jailbreak.
      I just downgraded from OS 3.1 to 3.0 to jailbreak my Iphone 3G again
    1. NormanRmrz's Avatar
      NormanRmrz -
      I Just Felt I had To Clear Some things Up.

      Most of this Focuses Around The 3.1 Firmware, And IPHONE 3GS OWNERS!
      (If You Own Any Other iDevice. I.E. iPhone3G/2G. iPod Touch 1G/2G. Skip Passed The Dotted Lines)

      Essentially If You Are An iPhone 3GS Owner, Then You SHOULD NOT Upgrade to Firmware 3.1
      FOR ANY REASON AT ALL, If You Want To Jailbreak/Unlock Your iPhone 3GS In The Future

      If Your A 3GS Owner and do not Have Your iBSS/ iBEC or Hashed ECID SHSH on File Then Jailbreaking Your iPhone On Firmwares After 3.0 May Be Difficult or Even Impossible

      Additionally, If You Upgrade To 3.1 On Your 3GS, You WILL NOT Be Able To Revert To 3.0. Ever.
      This Is Because Apple is No Longer "Signing' The 3.0 Firmware For the 3GS, And If You Try To Restore To It,
      Since it Will not be Signed by Apple, You Will Get An Error An Will Not be Able To Restore to It

      ^^^^ All That Only Applies To iPhone 3GS Owners. No One Else.

      ------------------------------------------------------------------------------------

      iPhone 3G Owners- As Far As Jailbreaking, Your In The Same Position As All Other devices (iPhone 2G, iPod 1G, iPod 2G) Once The Firmware is Jailbroken, Your All Good to Go. No problems.
      But As Far As Unlocking, Your In The Same Deal As iPhone 3GS Owners.
      YOU SHOULD NOT UPGRADE YOUR IPHONE 3G IF YOU WANT TO UNLOCK IT, FOR ANY REASON.
      If You Do, You May Never Be Able To Unlock It EVER AGAIN
      Wait For A New Pwnage Tool So you can Upgrade Your Firmware Without Upgrading Your Baseband.
      Follow those Rules And You Should be Fine.

      -----------------------------------------------------------------------------------

      iPhone 2G Owners - Your Unlockable No Matter What, Apple Hasn't Touched It's Baseband For A Year Now. No Worries here.

      ------------------------------------------------------------------------------------

      iPod Touch 1G/2G Owners - Pwned For Life(:

      ------------------------------------------------------------------------------------

      iPod Touch 3G - Soon To Come......


      -NormanRmrz
    1. seriousc's Avatar
      seriousc -
      Quote Originally Posted by NormanRmrz View Post
      I Just Felt I had To Clear Some things Up.

      Most of this Focuses Around The 3.1 Firmware, And IPHONE 3GS OWNERS!
      (If You Own Any Other iDevice. I.E. iPhone3G/2G. iPod Touch 1G/2G. Skip Passed The Dotted Lines)

      Essentially If You Are An iPhone 3GS Owner, Then You SHOULD NOT Upgrade to Firmware 3.1
      FOR ANY REASON AT ALL, If You Want To Jailbreak/Unlock Your iPhone 3GS In The Future

      If Your A 3GS Owner and do not Have Your iBSS/ iBEC or Hashed ECID SHSH on File Then Jailbreaking Your iPhone On Firmwares After 3.0 May Be Difficult or Even Impossible

      Additionally, If You Upgrade To 3.1 On Your 3GS, You WILL NOT Be Able To Revert To 3.0. Ever.
      This Is Because Apple is No Longer "Signing' The 3.0 Firmware For the 3GS, And If You Try To Restore To It,
      Since it Will not be Signed by Apple, You Will Get An Error An Will Not be Able To Restore to It

      ^^^^ All That Only Applies To iPhone 3GS Owners. No One Else.

      ------------------------------------------------------------------------------------

      iPhone 3G Owners- As Far As Jailbreaking, Your In The Same Position As All Other devices (iPhone 2G, iPod 1G, iPod 2G) Once The Firmware is Jailbroken, Your All Good to Go. No problems.
      But As Far As Unlocking, Your In The Same Deal As iPhone 3GS Owners.
      YOU SHOULD NOT UPGRADE YOUR IPHONE 3G IF YOU WANT TO UNLOCK IT, FOR ANY REASON.
      If You Do, You May Never Be Able To Unlock It EVER AGAIN
      Wait For A New Pwnage Tool So you can Upgrade Your Firmware Without Upgrading Your Baseband.
      Follow those Rules And You Should be Fine.

      -----------------------------------------------------------------------------------

      iPhone 2G Owners - Your Unlockable No Matter What, Apple Hasn't Touched It's Baseband For A Year Now. No Worries here.

      ------------------------------------------------------------------------------------

      iPod Touch 1G/2G Owners - Pwned For Life(:

      ------------------------------------------------------------------------------------

      iPod Touch 3G - Soon To Come......


      -NormanRmrz
      Why must you capitalize every single letter?
    1. khaledelfeki's Avatar
      khaledelfeki -
      I have a question here, if I have an iphone which is factory unlocked. Can I upgrade to 3.1 or not?
      I used to upgrade my iphone in the past without any problem, but this time I feel it will be a problem for me if I upgrade. Please confirm if I can upgrade or not.

      Thanks
    1. NormanRmrz's Avatar
      NormanRmrz -
      Quote Originally Posted by khaledelfeki View Post
      I have a question here, if I have an iphone which is factory unlocked. Can I upgrade to 3.1 or not?
      I used to upgrade my iphone in the past without any problem, but this time I feel it will be a problem for me if I upgrade. Please confirm if I can upgrade or not.

      Thanks
      Yes You Can Upgrade with no problems at all forever.
    1. khaledelfeki's Avatar
      khaledelfeki -
      Thank you very much for your quick reply.
      One more question please. About the Gailbreak, will I need to Gailbreak or it will be automotically Gailbroken?

      Thanks again
    1. HAVOKGT's Avatar
      HAVOKGT -
      what if i have no access to other computer so i can use itunes 8.1 or older to save iphone files since i already upgraded to 9.0??? will i still be able to jailbreak later when i upgrade to 3.1????
    1. NormanRmrz's Avatar
      NormanRmrz -
      Quote Originally Posted by HAVOKGT View Post
      what if i have no access to other computer so i can use itunes 8.1 or older to save iphone files since i already upgraded to 9.0??? will i still be able to jailbreak later when i upgrade to 3.1????
      Yes You will still be able to Jailbreak.
      According to the Dev-Team, iTunes 9 Does Not Interfere With Jailbreaking At all
    1. z28kid's Avatar
      z28kid -
      Quote Originally Posted by djfubar View Post
      I just downgraded from OS 3.1 to 3.0 to jailbreak my Iphone 3G again
      Who wants to take a stab at this video to see if it will truly works?
    1. NormanRmrz's Avatar
      NormanRmrz -
      Quote Originally Posted by z28kid View Post
      Who wants to take a stab at this video to see if it will truly work
      THE VIDEO DOES WORK!

      iPhone 3GS Owners Are The Only Ones Who CANNOT DOWNGRADE
    1. NormanRmrz's Avatar
      NormanRmrz -
      Thank You.
    1. HAVOKGT's Avatar
      HAVOKGT -
      well what about the iphone files everyone keeps saying you have to have saved from the older itunes??
    1. NormanRmrz's Avatar
      NormanRmrz -
      The iPhone Files are not saved from the older version of iTunes.
      They Are saved From The 3.0 Firmware, And it Only Applies To iPhone 3GS Owners.
    1. dhruvmalik's Avatar
      dhruvmalik -
      Quote Originally Posted by khaledelfeki View Post
      I have a question here, if I have an iphone which is factory unlocked. Can I upgrade to 3.1 or not?
      I used to upgrade my iphone in the past without any problem, but this time I feel it will be a problem for me if I upgrade. Please confirm if I can upgrade or not.

      Thanks
      Uhh. NOO WAIT!!!. If you have a iPhone 3GS Factory Unlocked, Just like the one i ordered a few days ago with 3.0 on it, you are still in a limbo. DO NOT UPDATE to 3.1. Having it Factory Unlocked ony will allow you to use any carrier, not give you the freedom of Jailbreaking. I haven't received my 3GS yet and am stuck as I have not captured my iBSS/iBEC files (Haven't received it yet). Like always, wait till the Dev Team gives the go ahead to update, safely. Now the advantage for us is that we can allow the baseband to update without it locking up on us as we dont need to have the exploit the dev teams uses for carrier locked phones.

      I truly hope you didnt update. please wait till others comment on your post before updating. No disrespect to NormanRmrz, but please do not give someone the go ahead without knowing the facts. He can stay unlocked but doesn't necessarily mean be able to JB.

      If I Helped. Please Hit Thanks!
    1. V.A.M.P's Avatar
      V.A.M.P -
      Quote Originally Posted by z3r01 View Post
      apple are a bunch of cock blockers sometimes lol
      LOL good one......
    1. Cirtess's Avatar
      Cirtess -
      Sure hope they get a JB solution for 3.1 soon... i really need to do a restore after messing things up playing SSH...I have no more email, my compass is broke and who knows what else Ive messed up...tg i can still make calls so im holding off upgrading but pleaseeeeee hurrryyyy.
    1. khaledelfeki's Avatar
      khaledelfeki -
      Dhruvmalik, Thanks for your help.
      Actually I'm having an iphone 3g and not 3gs. Will it make any difference? I mean the GB??

      Thanks again.