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  • Jailbreaking & Unlocking iOS 4 : What You Should Know
    Note: This Post will be udpated as news becomes available. Please share your experiences in this thread. It is highly suggested you do not update to iOS 4 right away. Please be patient.



    Today, as expected, Apple released iOS 4 to the public. But before you get too excited, there are some things you should know before updating to iOS 4. If you want to play Jailbreak with your iDevice, make sure you read through this.

    iOS 4 is compatible with the 3G, 3GS, the newest iPod Touch and iPhone 4. Those of you that have played with the GM release, the build number on this public release is exactly the same; 8A293. So as for changes since the GM there are none in this release.

    Update:
    Quote Originally Posted by bennyg View Post
    there are actually differences in the GM and public release. Notice no game centre in the public release? Also if you go to http://oo.apple.com to opt out of the iAd data collection stuff on the GM release it states your not on iOS4!

    Jailbreaking

    iPhone3GS & iPod3G owners (especially if you used Spirit for your first JB) should stay away from iOS4 for now

    Wizdaz has kept the community in the know, informing us that PwnageTool is currently being updated as we speak. PwnageTool 4.0 will support the iPhone 3G (with Pwnage exploit), iPhone 3GS and iPod Touch 2G (both with 24kPwn exploit). Keep in mind this means no support for the newer bootom. Remember the tethered days? If that was you, then you will need to wait until Spirit is updated or a new tool is updated for such.

    There is of course the Redsn0w option if you have a 3G, but stay away from any custom packages. The Dev-Team has written it well, and because of their credibility, here is exactly what they say

    We are working hard on a release to our tools that will jailbreak your device (or give you iOS 4 via the jailbreak train) and provide you with a carrier unlock.

    Until these tools are released you should hold off on updating your device until we have fully tested our tools with all the relevant devices.

    If you rely on hacktivation or a carrier unlock (ultrasn0w) then you should not upgrade until we have fully tested and released our tools.

    Don’t be tempted with unofficial PwnageTool/redsn0w bundles or releases, just check here or our team twitter for real time release information.

    Remember, we risk our devices so you don’t have to (but this time anyone who has made a mistake upgrading their baseband firmware at 3.1.3 or 4.0 should be OK real soon Now!
    iPhone Dev-Team
    WizDaz


    Unlocking iOS 4

    The iPhone Dev Team has released ultrasn0w 0.93 for unlocking your new iOS 4. Simply add the Cydia repo: repo666.ultrasn0w.com. This version of ultrasn0w will unlock basebands 04.26.08 thru 05.13.04. If your unsure, that means that ultrasn0w unlocks ALL basebands since iPhone OS 3.1. Even more specifically, 04.26.08, 05.11.07, 05.15.01, and 05.13.04. Remember to disable 3G on T-Mobile USA.

    So on the unlocking front, you're pretty much golden. However it's still recommend to wait just a little bit longer before making the plunge for iOS 4.

    iPhone Dev-Team
    MuscleNerd
    This article was originally published in forum thread: Jailbreaking & Unlocking iOS 4 : What You Should Know started by nickhesson View original post
    Comments 470 Comments
    1. iphoneness's Avatar
      iphoneness -
      What are my options on upgrading to OS4 (jailbreak / unlock) if I have the following..

      3GS
      redsnow jailbreak
      version 3.0.1
      firmware 4.26.08
    1. DisturbedZen's Avatar
      DisturbedZen -
      If an iPhone 3GS is already on official iOS 4.0, can it still be unlocked for T-Mobile? It has never been unlocked
    1. reedy1979's Avatar
      reedy1979 -
      ok guys as you can see im a bit of a newb at this. all i need to know is if i jb my iphone 3g with spirit as it was on 3.1.3 when i got it how do i go about upgrading to 4.0 ? do i just restore and then use itunes 9.2 and then the new tool ? is it safe ? i have read through alot here and not really found a dead cert answer any help would be great thanks.
    1. focker's Avatar
      focker -
      Quote Originally Posted by reedy1979 View Post
      ok guys as you can see im a bit of a newb at this. all i need to know is if i jb my iphone 3g with spirit as it was on 3.1.3 when i got it how do i go about upgrading to 4.0 ? do i just restore and then use itunes 9.2 and then the new tool ? is it safe ? i have read through alot here and not really found a dead cert answer any help would be great thanks.
      I would try to upgrade to 4.0 through iTunes as a first step.
    1. bobright's Avatar
      bobright -
      Quote Originally Posted by chemalito View Post
      Im jailbreak on 3.1.3 with Spirit and I installed ultrasn0w to test if it works, and it does, works great with T-Mobile SIM, only one problem... Cydia is stock with a Change badge, I go to it, it says its ultrasn0w, I update, and then, it keeps showing the badge and the update for ultrasn0w, Im about to delete ultras0w from the phone to see if this fix the problem, anyone else with this??? anyone knows why this happen???
      so youre on Windows and a 3GS unlocked? did you downgrade or did you never update to stock 4.0?
    1. floppy_joe's Avatar
      floppy_joe -
      sounds like me, 3gs originally blackrain up to 3.1.2 then spirit for 3.1.3, now what for 4.0....have not restored or upgraded to 4.0 yet
    1. ewectwonic's Avatar
      ewectwonic -
      Jailbreak/Unlock works great on my 3g iPhone. Just waiting for 4.0 support for SwirlyMMS and some other Cydia packages. Thanks!
    1. jasonm253's Avatar
      jasonm253 -
      if ur waiting for swirly because of mms just google tmobile settings and in the network part of the phone u can fill in the mms settings urself...dunno if thats th reason ur waiting but if so there u go
    1. DJM AutoWerkz's Avatar
      DJM AutoWerkz -
      Wow swirly there still around.
    1. crackertime's Avatar
      crackertime -
      Hey everyone, just signed up after reading about 15 of the 28 pages of this thread. I have learned a lot but am still stuck in my updating progress.

      1. I formatted my hard drive, forgot to save the backup or library itunes made, and now it tells me if I sync, I will lose everything on the phone because it is tied to a different itunes library.Honestly I really don't want to type all my contacts etc in again.

      2. Then comes the the intermingling of problems, as with the situation above, can I just forgo this process, and iTunes will accept the iphone if I upgrade and jailbreak to 4.0?

      --Perhaps useful info--
      I am on baseband 5.11.07 and firmware 3.1.2 (running an app that makes the phone think it is 3.1.3). I used black snow about a month ago. 32 gig iphone 3gs. Jailbroken/unlocked.

      If anyone could even get me headed in the right direction, I would really appreciate it, as even Google has failed me in understanding this. Thanks a lot.
    1. eyestrain's Avatar
      eyestrain -
      sad to say im having problem with 3gs,

      but on the other side this is really a great news
    1. brett_day's Avatar
      brett_day -
      so for those of you out there that are still on the fence in regards to upgrading to 4.0, maybe this will help you.

      I have been using 4.0 for about 12 hours now on T-Mobile and have had no real major issues with it on my 8gb 3g iphone.

      I have multitasking and wallpapers enabled and for the most part the phone runs pretty smooth. There is lag everyonce in a while, it happens mainly when you switch back to the main screen from an app. There can be some slight lag when using the on screen keyboard when you start typing a message but it soon catches up.

      I have had zero issues when it comes to running apps! all apps run just as fast as they did before on 3.1.2

      Multitasking is pretty cool and it runs well. It is nice to be able to switch from one app to another without going back to the main screen, it works well but there is some slow down but again nothing that would stop me from using it. If you want to close out apps just double tap the home button and hold your finger on one of the apps and you can select which ones to close.

      Wall papers are cool! I am not sure if these are the reason for some of the lag or not, i might try and jailbreak again with no wallpaper to see if it is the cause, the lag is not bad and it does not really bother me but it might bother others.

      I have not used cydia all that much, i never used it much before. I have downloaded sbsettings and it works great. YMMV on other apps from cydia or rock i think it will be trial and error for a while

      There is no doubt the 4.0 update pushes the 3g to the absolute limit but the phone is working well, everything functions as it should. Battery life honestly seems to have improved some, i will report back later on with more definitive findings though.

      I like the 4.0 update, if you can stand some lag every once in a while i think you will like it too! I hope this help you guys out there who are on the fence!

      Regards
      Brett Day
    1. beav626's Avatar
      beav626 -
      like some others Im a 3Gs on 3.1.2 5.111 baseband. Waiting for a PC Jailbreak
    1. brett_day's Avatar
      brett_day -
      Quote Originally Posted by beav626 View Post
      like some others Im a 3Gs on 3.1.2 5.111 baseband. Waiting for a PC Jailbreak
      see you are in OKC! i am in Moore! nice to see a fellow okie on here
    1. beav626's Avatar
      beav626 -
      Quote Originally Posted by brett_day View Post
      see you are in OKC! i am in Moore! nice to see a fellow okie on here
      yup, im in Moore too. did you get yours Jailbroke yet?
    1. brett_day's Avatar
      brett_day -
      Quote Originally Posted by beav626 View Post
      yup, im in Moore too. did you get yours Jailbroke yet?
      yeah i am jailbroke and unlocked! i have a 3g. i wrote a review just above your other post!
    1. ewectwonic's Avatar
      ewectwonic -
      Quote Originally Posted by jasonm253 View Post
      if ur waiting for swirly because of mms just google tmobile settings and in the network part of the phone u can fill in the mms settings urself...dunno if thats th reason ur waiting but if so there u go
      for some reason those settings only seem to be working on sending mms but not receiving.
    1. clarkey's Avatar
      clarkey -
      Just jb'd and unlocked iOS4 on my 3g, seems to be running a lot faster than 3.1 was for me.
    1. DmVinny's Avatar
      DmVinny -
      Can u manually disable the wallpaper? Like when iFile fixes there app to work with iOS4 is it a simple switch like bgwallpaper = 0 ?

      I also noticed safari uses alot more memory then in 3.1.x, almost seems like its leaking memory... i had just safari opened, viewing modmyi.com in iphone theme, and i went from 54mb free, to 28mb free and as I sat and viewed a page, it would go down 1mb every few seconds... till i was down to like 9mb.
    1. ajayguptab's Avatar
      ajayguptab -
      Quote Originally Posted by okaybn View Post
      I am a bit confused.

      If i have a brand new 3GS from apple today, would I be able to unlock it?

      How are people unlocking iOS 4.0 if there isnt even a jailbreak for it yet? This is whats confusing me.

      If someone could clear that up for me itd be greatly appreciated.

      Thanks guys.
      Yes Even I am confused. I have a 3Gs with 3.1.3 and bootrom 05.12.01. I used spirit to jailbreak and ultrasn0w for unlock. Now, if I upgrade to 4.0 what will my bootrom version and will I be able to unlock after that? Any guidance is appreciate. thanks

      -Ajay

      Quote Originally Posted by okaybn View Post
      I am a bit confused.

      If i have a brand new 3GS from apple today, would I be able to unlock it?

      How are people unlocking iOS 4.0 if there isnt even a jailbreak for it yet? This is whats confusing me.

      If someone could clear that up for me itd be greatly appreciated.

      Thanks guys.
      Yes Even I am confused. I have a 3Gs with 3.1.3 and bootrom 05.12.01. I used spirit to jailbreak and ultrasn0w for unlock. Now, if I upgrade to 4.0 what will my bootrom version and will I be able to unlock after that? Any guidance is appreciate. thanks

      -Ajay
      [email protected]