The Dev Team has just released an update to their RedSn0w jailbreak, which is now at its version 0.9.6b6. This update was released following the battery drain issue experienced by some iPhone users who had unlocked using UltraSn0w.

This battery drain problem was encountered by those of you who updated the iPhone baseband to 06.15.00 in order to unlock. A fix has now been worked out. You can find this fix here

In the meanwhile, you may download RedSn0w 0.9.6b6 from our iPhone downloads section.

  • still no untethered jb? 🙁

    • Burge


    • Amoeba

      4.3 is right around the corner. is there really a need for an untethered 4.2

  • Katharine

    Does this enable iPhone 4 on iOS 4.2.1 on baseband 3.10.01 to be unlocked?

  • RG

    PUSH DOCTOR from cmndshft (google repo) does the trick too, works just fine on 3G

  • HasanM

    is there any unlock for BB: 05.15.04 in the near future ???

    • MMADEE

      An unlock is available for above mentioned BB. But its a work around 🙂

    • Yes its available now. first you need to jailbreak your iphone using redsn0w 0.9b5 (ensure you selected ipads baseband update while jailbreaking through redsn0w, this will update baseband 5.15.04 to 6.15 ) then goto cydia and install ultrasn0w 1.2 this will unlock your iphone:) say thanks to dev team 🙂

  • countonemelikeonetwothree

    they should stop saying you can update to 6.15 and unlock your phone. the warning didn’t say anything about messing up the gps. sad for those who updated to that ipad bb. they have an iphone that’s not carrier locked but non working gps. i’m glad i didn’t, i’ll wait and see if they can come up with an unlock for 5.15.04. for now, i’ll be using my other phone for calls and texts. my iphone has turned into an ipod/car nav system/gaming device. lol

  • Dave

    So is there an unlock gor iphone 4 .. 4.1 …2:10:04

    • No, I don’t think there is going to be one for a few weeks…

  • Camilo

    Fix 3GS new bootrom error 1015 Recovery Mode loop?

    • pheonix

      Is there really no fix at all for this?
      I know I seem to have tried everything but surely something will fix it.

      • Jeff

        Use tiny umbrella to kick out of recovery after 1015 error for any firmware except 4.2.1.

  • Tom McDermott

    Will there ever be a jailbreak and unlock for iPhone 3Gs 4.1 05.14.02 that does not require me to change to baseband 6.15? I am moving to England in four months and need it unlocked but do not want it at 6.15.

  • Christian

    So will this work with an iPhone 4?

  • ranjan

    Wat about GPS issue on BB 6.15? is their any fix ?

  • Gracie

    Thanks dev team finally i can now use my iphone..:-)

  • sunny

    Hi, I’ve got a ipod touch 4g on 4.2.1. I used redsn0w to jailbreak it, but when I try to open up cydia on the ipod, it just doesn’t open. The cydia icon is white and it just open and closes right away. I’ve restored the ipod and then tried to use redsn0w again and the same thing happened.

    If there is anyone who know how to fix this please let me know.

    Thnak you

    • Jacky

      yea.. when u install, pick “Just boot tethered…….”
      after i installed a few mods from cydia, though, my ipod keeps crashing.. so i think you should wait for the next legit untethered jailbreak….


    Today i used Redsn0w version 0.9.6b6 to Jailbreak iphone 3g form 4.0 to 4.2.1, using the tutorial mention on your website, i even selected the install ipad baseband, after the redsnow process everything was going on & after my iphone restarted it was already showing vodafone network & when i checked the version in the about us it was still 4.0 but the baseband was update to 06.15.00

    Can you inform me what went wrong & why my iphone 3g was not update to 4.2.1

    I used firmware “iPhone1,2_4.2.1_8C148_Restore”

    • ranjan

      Did u restored new firmware using itunes?

      • UTTAM JAIN

        No i used Redsn0w to upgarde

  • Kiranda

    I have just jailbreak my ipad 4.2.1 with redsnow 0.9.6b6 and its untethered! Weird!

  • Jacky

    it srsly messes up ur ipod.. im using a 32 gb 3G ipod touch, used this jailbreak.. and it seemed fine.. but once i installed a few cydia mods my ipod just crashes and freezes all the time… might as well just wait for any future firmware releases… -_____________-

    • Kiranda


      i assume you are on IOS4, the jailbreak is fine itself…just don’t install tweaks like overboard & backgrounding etc. Mobile subtrate will crash every now and then.

  • Doesn’t show my contacts in my iphone 3gs why?

  • earz

    i spend a great deal of my business life on the road and very much would like internet tethering.
    i have an unlimited data package for my iphone 3g and want to jailbreak to use Mywifi as one of my coworkers does with great success on his 4g.

    i have tried in vane to jailbreak my 3g ios4.2.1 to run theh cydia mywifi tethering app.
    seems the phone locks on the home screen every time i do the jb dance.
    i can get the break to load, the phone slows down, screen flashes when changing screens..
    i can load the Mywifi app and reboot .
    then the phone locks up.

    any thoughts or possible solutions other than buying a 4g?


  • ali

    hi can soneone help please i have updated my ipnone 3gs to 4.2.1 and unlocked it by redsnow which i ovisly had to change the baseband to 06.15 everything was fine but my phone just got in recover mode where i have to restore from i tunes but its not happening can some one please hepl thanks

  • Sumit

    Hey, i have tried SAM but there is no difference, battery still drains as usual, and just in case if there is wifi left on, it will just take minutes for the battery to drain….
    Pls help this battery drain is knocking my brains out…

  • dipak

    how to downgrade bb 6.15 to 5.15 any sugg

    • Hal

      BB no good, please get iphone

  • Nasser

    Guys i jst wanna jb my ip4 and install appsync, So will i be on the untethered side? Plz help

  • Nicholas

    is there a untethered jailbreak for 3gs 4.2.1 mc model for windows yet

  • Nicholas

    does redsnow have a UNTETHERED jailbreak for 3gs 4.2.1 mc model

  • Andrea

    ok i have tried all the tricks i’ve seen posted about how to get redsn0w to not crash but i only get as far as uploading ram and then windows pops in and says an unexpected error has occurred with redsn0w and it shuts redsn0w down before my iphone 3g gets jailbroken successfully wth should i do i’m about ready to chunk my phone and the computer!!! i really want this jailbreak.. i have the iphone 3g on ios 4.2 with the 5.15.04? bb

  • Nathan

    I had to have redsnow run in compatibility mode for windows xp/sp2
    This can be done by left clicking on the icon and going to properties and then changing the compatibility it runs under.