Ultrasn0w 1.2.4 For iOS 5 Released [Unlock iPhone]


As promised, iPhone Dev team have released an updated version of Ultrasn0w for iOS 5.

Ultrasn0w 1.2.4 can now be installed on a jailbroken iPhone running iOS 5. Dev team hasn’t added support to any new baseband so it will be compatible with basebands 04.26.08, 05.11.07, 05.12.01, 05.13.04, and 06.15.00 for iPhone 3GS and baseband 01.59.00 for iPhone 4.

Dev team has provided the following information on their blog about today’s release:

We’ve updated ultrasn0w to be compatible with iOS5, which came out a few days ago.  While ultrasn0w 1.2.4 (available now in Cydia) doesn’t add support for any new basebands, the update is required for any ultrasn0w unlockers trying out iOS5 (it remains backwards compatible though, so you should be able to use it no matter what firmware you have).  

The supported basebands for the iPhone 3G and 3GS are 04.26.08, 05.11.07, 05.12.01, 05.13.04, and 06.15.00.  The baseband supported for the iPhone4 is 01.59.00.

Remember, the only way to get to iOS5 while preserving your ultrasn0w-compatible baseband is by using a custom IPSW.  redsn0w now has the ability to create such a custom IPSW for you (at least on Macs…the same capability for Windows will be coming soon).

The majority of people who use ultrasn0w at iOS5 right now will probably be those with old-bootrom iPhone3GS devices, since they already have an untethered jailbreak via redsn0w.  For everyone else, the iOS5 jailbreak is currently tethered and you need to “Just boot” tethered with redsn0w every time your phone reboots.  That’s not always easy to do if your phone reboots while away from home!

Note: there’s a special “trick” that iPhone3GS owners with baseband 06.15 need for iOS5.  During the new setup screens you see when you start iOS5 for the first time, you’ll be asked about Location Services.  Be sure to select “Disable Location Services” when asked!  Later on in the setup, you’ll have the chance to turn on Location Services again when asked if you want to use “Find my iPhone”.  It’s fine to turn it back on at that point, if that’s your desire (or you can always go in and enable it in Settings.app).

Also, some iPhone3GS users with the 06.15 baseband may have tried to install iOS5 using a stock IPSW (even though you should never ever try to use a stock IPSW if you’re an ultrasn0w unlocker).  If you did try this, your baseband is probably in an inconsistent state, and you’ll need to reflash the 06.15 baseband again (using redsn0w).  Be very careful if you use redsn0w to reflash the iPad baseband — don’t interrupt the process! And please avoid using stock IPSWs in the future 🙂  Unlockers should never go near stock IPSWs.

iPhone Dev team had released Redns0w 0.9.9b5 with PwnageTool functionality, so if you have an iPhone 4 or iPhone 3GS with the older baseband (You can find your iPhone’s baseband by going to Settings –> About –> Modem Firmware) then you can use it or Sn0wbreeze to create the custom iOS 5 firmware to preserve the baseband and update your iPhone with a pre-jailbroken iOS 5, so that you can install Ultrasn0w 1.2.4 from Cydia.

As always, let us know how it goes.

[via Dev Team’s blog]

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  • AdamsMoon

    so nothing new !! still no UNLOCK to iphone 4 new baseband

  • Prckybgd

    It is looking like game cat and mouse is over for unlockers.. Only saved his BB 1.59.00 can be unlocked..
    Is that Apple’s WIN or hackers LOOS!?

    • Zolk

      I don’t know the situation for your place, but here in Australia, phone carriers are now happy to unlock contract iphones (and other phones) for free! They’re only locked in the first place because it’s a condition set by Apple. And of course, for the carrier – you’re still locked into your 2 year contract whether or not you’re still using their SIM – so they don’t mind!

  • Macca

    Will they ever be able to add baseband 05.16.02 to it?

    • Strulf

      I have the same baseband. Did anyone try it with this?

    • Strulf

      Btw. my 3GS is unlocked (neverlock) so I just need an untethered jailbreak, no unlock.

  • Vlad

    Why dont the unlockers from ultrasn0w work harder? They need to get unlocks out for the ones that are needed now rather than the old ones that no one cares about. I am running on 04.11.08 pls unlock.

  • Goody12

    Jailbreak won’t work. On 3gs new bootrom, updated with no baseband and go to jailbreak and it fails at reboot. Any ideas?

    • jake

      same thing happened to me. I still havnt fixed it yet…

  • Mickey

    To be honest all I care about at this point is for a unthedered jailbreak. Sadly i can’t update my iPhone 4 and specially for my iPad 2 until this jailbreak is made. I’ll wait a bit longer for thy iOS5 🙁

  • Gerardo

    Does Gevey sim unlocks iOS 5

    • DonnyBoy

      Yes but only on perserved BB

  • Elim

    hi all to those still dreaming of unlocking your iphone with baseband other than the ones that are mentioned above, go get an UNLOCK iphone and get rid of yr existing LOCKED iphone for good. do not waste time waiting for any miracle k. time to do it right now and stop all the crying and balls squeezing.

    • Freddieboy

      Thats what I did the last three times (3gs 4 & 4s ) Got the 4s in Glasgow today £499 unlocked however there are no markings on the 4s to indicate it is an 4s side by side cant tell them apart a small 4s on the back like they done with the 3gs would have been good

      • JohnnyBravo

        The best and easiest way to distinguish the difference between 4 and 4S is the antenna bands on the side 😉

    • firefoxsurfer

      too bad there’s no “Like” button. 🙂

  • Thomas

    Can i use this if my iphone is runnin on version 4.1 and a bb of 02.10.04
    Any help will be greatful

  • Gerardo

    What about Gevey Sim, does it work on official new iOS 5?

    • iphone 4 user

      gevey sim works only if you preserve your baseband and use a custom firmware and i would say use snowbreeze for this as using the hacktivate my imessage and facetime activated which it wouldnt do using redsnow

  • J-God

    So does it also work for IPhone 3G. Cause I’m having this battery drain issue with 4.2.1? Im saying in the article it only mention iPhone 3G once. Was that a mistake?

  • iLynk

    To answer everyones question about the Gevey working on iOS5 Offical. The Gevey will not work with New Baseband thats comes with offical iOS5. The only way Gevey works if you use Sn0wbreeze for windows and use a Custom iOS5 with preserved baseband. I have iPhone 4 on iOS5 with Baseband 02.10.04 and it works with Gevey Ultra.

    • Ksana

      Can I ask how did u get iOS5 on your phone?

    • Bigdaddi

      hi iLynk,

      If i understand correctly, your iPhone 4 is on baseband 02.10.04 and used to be on iOS 4.1 (or later while preserving 02.10.04 baseband), and then you upgraded to iOS 5 using Sn0wbreeze and a custom iOS 5 while preserving the baseband, correct?

  • Kaz

    Okay.. so since all the iPhone 4S’s are the same and dual mode, and Sprint is SIM unlocking iPhone 4S’s.. Sprint should be able to unlock an AT&T iPhone 4S for example and make it factory unlocked? Can someone clarify on this.

  • los1ner

    this ios 5 makes my iphone 4 feel new again! cheers

  • iLynk

    Nope will not work. What they mght end up doing is putting a lock for other US carrier but open to Carrier Aboard just like Verzion’s Droid Global 2

  • fas

    Apple wins, Dev loses, end of story!

  • moe

    unlock is useless! be smart buy without contract direct from apple.

  • Nick

    So what can a person with a Verizon iPhone 4, jailbroken with Greenpoison (untethered), running IOS 4.2.6, and the 1.0.06 baseband do? I will only do an untethered update to IOS5. Is there any hope for me???

  • Zoxxx

    Nice job dev !Nothing new agean .Prob vill bi new unlock before iphone 5 relise day 🙂 If Apple aprove that normaly 🙂

  • Queenofhearts

    The 4s is both cdma & GSM. Will you be able to flash it to a different cdma network?

  • Quan Nguyen

    ultrasn0w keeps “Searching” on my jailbroken 3GS. What should I do?

  • vilanong

    Nope It doesnt seem to work for me I have the iphone 3gs and I downloaded the jg software went through it all and in the end it said done but now im just a a screen with all these configs. on it and it is just stalling.

    What should I do?

  • mp

    Is there a step by step guide how to (preserve the old baseband), jailbreak ios5 and unlock the iPhone? I have iPhone 4 that’s still running on 4.0.1 and was unlocked with the very first jailbreakme.com (baseband 01.59.00)
    Some one, please?

  • Tanner

    I have an iPhone 4 running 4.3.3 with baseband 4.10.01. I tried to use pwnage to jailbreak with custom ipsw and it failed.

    I only care about unlocking it as I am living in Indonesia now. I may just have to get a Gevey sim sent here so I can finally use my phone. I want to use iOS5 though. What are my options without totally screwing myself out of a future possible unlock?

  • Nahla

    Heeeelp! I have an iphone 3GS, with blackra1n jailbreak, I updated it to IOS 5 using the redsn0w jailbreak without preserving the BB :/ and now off course it refuses the sim card! Should I through it in the trash now or what??

  • With any Iphone 4 ios 5 whatever BB??? should be not working with gevey sim. Gavey Sim will be working with IOS 4.3.4/4.3.3/ or less. If you already upgrade IOS5 and wanna be unlocked go to downgrade os??? then need to be update IOS5 just using the Custom Firmware ios5 only.

  • kj; or;trui r

  • Technically Inept

    iPhone 4 i.o.s 5.0.1 so i have jailbroken with the latest sn0wbreeze, managed to hactivate (with sn0wbreeze custome ispw), installed ultrasnow, but still cant pick up a signal. i have booted with iBooty 2.3….someone please provide some guidance! thanks in advance!

    • Technically Inept

      sorry it should also be noted I am running BB 1.59.00

  • Uzi

    will they be updating ultrasn0w so that it can unlock new basebands? cause i didnt know i had to preserve the baseband wen updating, so my baseband is now 04.11.08. anyone know if and when the update would b released?

  • i have iphone 4 lock sim card indonesia ,,