Just to preface this before anyone gets the wrong idea; there is still no new baseband unlock available.

Now that the formalities are out of the way, I think it’s safe to tell you that new details have been revealed about the existing baseband unlock and its compatibility with the soon to be released untethered jailbreak for iOS 4.3.1.

Depending on when the jailbreak is actually released, if you rely on an unlock, you may have to wait a while until a new version of UltraSn0w is released.Β This is due to some compatibility issues between iOS 4.3.1 and the current version of UltraSn0w.

Fortunately, you won’t have to wait long, as the latest tweets from members of the iPhone Dev Team confirm…

Basically it goes like this: If you’re using an unlock, you’re most likely utilizing a version of UltraSn0w. The existing version of UltraSn0w doesn’t work with iOS 4.3.1, so it will need to be updated before you can use it.

Once this new version of UltraSn0w is released, all compatibility issues will be fixed, and you will be able to install it and resume using your unlocked iPhone.

iPhone Dev Team member MuscleNerd confirmed that the new version of UltraSn0w should be out soon after the jailbreak is released into the wild.

Again, just for clarification purposes, this update to UltraSn0w will not allow those on new basebands to unlock. If you can’t unlock with the current version of UltraSn0w, you won’t be able to use this one to unlock.

This update is needed to enable UltraSn0w unlocking on iOS 4.3.1 for existing unlock eligible devices.

Make sense?

  • August

    I use an ipodtouch 4g on 4.3.1, and I am planning to jailbreak it when I the jailbreak I available. Does all this baseband and unlock stuff concern me or is it just for owners of iPhones to worry about?

    • Hanybv

      Do you have a Sim duck in your ipod touch 4’th generation πŸ˜€ πŸ˜€ πŸ˜€ !!!!!!!!!!!!!!!

    • maxx

      It doesnt matter for you. The Baseband Issue is just to unlock the iPhone for use with different carriers.

    • Mark volz

      Ignorant -.-

  • Hanybv

    Damn it i’m in the new baseband 3.10.01 i appreciate the untethered jailbreak but please ultrasn0w give us an unlock i don’t want to buy that ridiculous Sim that costs 70 $ pleaseeeeeeeeeeeeeeeeese πŸ™

  • DrE

    No.. Unlock is only if your trying to put your iPhone 4 via Tmobile

  • Gorge W. Bush

    Only for iPhone owners.

  • Carmel

    Ultras0w works well on latest sn0wbreze beta… Wonder why not on redsn0w …

  • Geohot

    so can we unlock 03.10.01 baseband we upcoming unlock?

    • Hanybv

      NO its just a compatibility issue that ultras0w can’t work correctly on ios 4.3.1 ! Its a minor update ! that’s it !!!

  • HasanM

    Damm , so are you saying that I just update my BB to 6.15 !!!
    it’s been too long since I used my LOCKED iphone , when there will be an unlock πŸ™

    • Hanybv

      Only GOD knows when ?!?

    • Thor

      Face it…Looks like Tom finally won against Jerry.

      • Sodhiq

        @ Thor: You are so right. Now Apple has won the battle. Hackers sucks. Its taking more than a believable time. It clearly means that apple bought all of them or Apple is on the top. All these sucks. WTF…..

    • Smitty

      I updated my 3GS to 6.15 when it came out and haven’t had gps ever since. Don’t recommend updating to 6.15!

      • Anonymous

        It works for some and not others on 6.15. We have no idea what causes the GPS issues.

  • Topsy

    So many typographical error! All in the name of Apple, jailbreaking and unlocking cenario. Mighty Apple thanks for making life hard for us.

    • 2meu

      Agree. “making your life……..hard”

  • Huey

    So if I’m on a 4.3.1 firmware with a 5.16.02 baseband, I can’t get it unlocked off of Rogers? But I can still jailbreak it? If this is the case, when could an unlock be available? Shortly after the unlock, or a “who-knows-when” kind of time. Just curious, someone let me know, thanks.

    • Contact Rogers you should be able to get it unlocked for $50. It would be a permanent unlock aswell.

      • Huey

        I just read up on the policy for that though and it says I gotta have an account with them and whatnot. I’ve been on a local network (Sasktel) for years now and never had a Rogers account. I just bought a Rogers 3GS after I lost my unlocked 3G, and need this one unlocked so I can remain on my current contract which has unlimited data unlike any Rogers plans available.

      • I would stil give them a call. I’m sure if you bug them enough you can get it.

  • meh

    ok….so much conflicting responses going on.

    im on 4.1 jailbroken w/ bb: 02.10.04 will i be able to unlock my phone if updated to 4.3.1 or not?

    • Smitty

      No, you can’t unlock 2.10.04
      And you still won’t be able to unlock after updating to iOS 4.3.1

      • meh

        WTF??? why the hell wont 2.10.04 be unlockable? ive seen so many blog posts stating that it will be with ultrasnow 1.3 or w/e.

        srly, this is messed up! at least with android the information you get is clear and concise but ios your lucky if you get the correct answer on the 10,000 page of google.

        srly, work on newer basebands. they are new for a reason and will be the old basebands in a years time

    • Smitty

      No, you can’t unlock 2.10.04 and you still won’t be able to unlock after updating to iOS 4.3.1

      • hackulous

        did you tried it on newer BBs

  • dabe

    Thank you :)))) let’s get the eBay auctions going haha.

  • zbegon

    ^—-some of you should not reproduce….please.

    • IndiePhoenix

      2nd that!

  • AnotherBrian

    My understanding is when the ultrasnow update comes out you will still only be able to unlock phones on 1.59 baseband. I may be wrong so correct me if that’s not so. I’m talking about iPhone4’s not sure about older units.

    • vortgrenade

      yeah you are correct since 1.59 is the only eligible baseband that can be unlock when you’re on ip4. THAT ARTICLE IS JUST SAYING THAT RIGHT NOW ULTRASNOW IS NOT COMPATIBLE WITH 4.3.1 SO WAIT FOR THE UPDATE IN ORDER FOR YOU (WHO HAS 4.3.1 with BASEBAND 1.59 , NO MORE NO LESS) TO UNLOCK.

  • DebTym


  • zvadi

    why IDB advertising “unlock any baseband sponser” they all are scammer, this mess up man

  • Binary-Stalker

    This will be good. The jailbreak will be out in 2 hours here. Hopefully, else we’ll all have to wait.

    Happy jailbreaking!

  • Binary-Stalker

    We, excuse me, I meant 5 hours. >_<

  • Binary-Stalker

    We was supposed to be er. Autocorrect caught me.

  • meh

    hi guys, im really confused. when i got my ip4 i unlocked it within an hour or owning it, it came with 4.1 and baseband 02.10.04. now i jailbroke it via limera1n and unlocked it with ultrasnow 1.2 despite the fact that it seems my baseband doesnt work with ultrasnow?

    when i jailbroke/unlocked i paid no attention to basebands or any of the incompatibility stuff, so if i was able to unlock with the baseband ive got now but wont i be able to do the same on 3.2.1?

    • meh

      UPDATE: so it turns out my phone isnt unlocked at all. however i am able to use sims from two different networks. iphone 4 is locked to orange UK and ive been using a t-mobile UK sim, after abit of googling ive discovered that if your phone is locked to either orange or t-mobile then you can use either a orange or t-mobile sim in your locked handset because they have joined together.

  • hackulous

    the ultrasn0w new update is already released ?. is there anybody tried on BB 03.10.01 ?.

  • iPhone4User

    What this means is that all old baseband supported by previous versions of Ultrasn0w will be unlock when the new iOS 4.3.1 compatible version of Ultrasn0w is released. So if you got iPhone 4s with new basebands you are locked. There will be NO new baseband unlocks coming out.

  • Dan

    Im sooo confused, i have an iphone4, im from the UK and am in a contract with vodafone. My ‘modem firmware’ number is 04.10.01, can i use sn0wbreeze to jailbreak? getting paranoid about all this talk about ‘unlocking’ etc, help would be appreciated alottttt, thanks

  • jams

    Hi, all sorry if this has already been posted, i had sucess jaulbreaking an iphone 3gs 4.3.1 with baseband 5.16.02..tried to unlock it with repo666.ultrasn0w.com loaded version 1.2 everything went well, when i put in the sim it stuk on searching…(yes i did the plane mode to off and opn and rebooted) and still nothing any help would be appreciated…thanks

  • Big D

    What are the old or new basebands? Can somebody let me know? Or I’ll just wait when it posted..

  • Dusan

    My question is, if you can reply please do. Is there any hope for bb3.10.01 unlock to come anytime soon or should i just go and buy micro sim to unlock? I have been reading posts from Dev team hackers and they were saying that they found some thing that worked on 3.10.01 or have i read it wrong?

  • sushil

    i updated my iphone 4 from 4.0 to ios 4.3.1… do i need to unlock it again????

    • Lord Flame Stryke

      From what I understand, if you upgraded via iTunes, then your phone is once again locked and un-jailbroken (jailfixed?). If you upgraded via sn0wbreeze or some other method, then your jailbreak and unlock should remain, so long as you didn’t upgrade the bb to the new one.

  • draco809

    How to I update to 4.3.1 if I’m on iPad baseband on my iphone 3gs?

  • Elizabeth Broderick

    Running the risk of sounding like a complete idiot, I am putting my question on here in hopes to get some answers in which I can easily understand. I have an iPhone 3GS, 4.3.1 with modem firmware 05.16.02. With that said I have been trying all night to unlock my phone so that I will be able to easily use it when traveling to the UK in just a few days, and not have to suffer without the great benefits my iPhone offers. I downloaded pwnage and it seems every search I have entered it returns with the result of “no match found”. After reading the above posts/questions on this being disabled due to the new update…any other suggestions on how I can unlock this phone, and in the next few days? I am seriously scraping the bottom of the barrel on what my next move should be with this phone! Any help you can contribute would be greatly appreciated.

    • iPhone 3GS, 4.3.1 with modem firmware 05.16.02 has no unlock solution, your only option is to upgrade the modem firmware to 6.15.0 via redsn0w to make it unlockable.

  • Simone

    Dear Jeff &
    Forgive my ignorance, I have a question about which I am curious merely on a technical level: why hasn’t anyone come up with a new unlock for baseband 05.16 yet? It has been months since that firmware was released, you’d think someone has the brains and the time to find an unlock already. How can that be, in your opinion?
    Thanks for your time.