Blacksn0w rc2Yesterday I was telling you about this guy who’s been working on updating BlackSn0w to work on iPhone OS 3.1.3. Well it seems he has worked out the kinks and someone has made his update available.

You can now download and install BlackSn0w RC2 to unlock your iPhone 3.1.3 with baseband 05.11.07. The app should be available in the MMI repo soon, but if you can’t wait, you can always add this repo:

After jailbreaking your iPhone, simply launch Cydia and look for BlackSn0w RC2. Download and install, then reboot your iPhone. You should be good to go.

Note that if you accidentally updated your iPhone to 3.1.3, thus updating your baseband to 05.12.01, you will not be able to use this hack.

To date there is still now jailbreak and unlock for iPhone 3.1.3 on baseband 05.12.01.

  • minifender

    can this be done on a 05.12.01 baseband??? wich baseband is the latest?

  • minifender

    works on 3GS???

  • Sil

    Will it still be a tethered unlock?

  • Issrar

    What if my ipjone’s baseband is 05.12.01 ?? Will this work ?? Thanks in advance

  • Issrar

    What if my iphone’s baseband is 05.12.01 ?? Will this work ?? Thanks in advance

  • iphone

    Can’t people understand what is stated in clear terms as above, why ask stupid questions ?

    • AK

      I don’t think anyone who knows how to Jailbreak and Unlock writes CLEARLY what to, how to and why to do all what he/she writes

  • killen

    ei…can someone tell what tool would be that?and where can we download that stuff that can unlock 3gs 3.1.3 bb 05.12.01

  • //To date there is still now jailbreak and unlock for iPhone 3.1.3 on baseband 05.12.07.

    Just to quote

    6 hrs, 21 mins ago
    Will it still be a tethered unlock?

    This dOesn’t depends to the bootrom, with the old bootrom its untethered!

  • SJ

    Hi. I realy don’t want to be the one who ask a stupid question so please forgive me in advance but how do I know what baseband I’m on?

  • To date there is still no jailbreak and unlock for iPhone 3.1.3 on baseband 05.12.07

    Plz READ Stuff

    Tethered is for jailbreaking not unlocking.

    jailbreak: able to install 3rd party apps with out the use of iTunes.

    unlock: to make the iPhone usable with other carriers, (has nothing to do with tethered)

    This program is for unlocking. not for jailbreaking.

    To use blacksn0w RC2 you must have a jailbroken iPhone and install the repo thru Cydia.

    One more time in case you missed it….(To date there is still no jailbreak and unlock for iPhone 3.1.3 on baseband 05.12.07 newer bootrom MC model)

  • Just to quote “To date there is still now jailbreak and unlock for iPhone 3.1.3 on baseband 05.12.07”

    Jailbreak means: the ability to install 3rd party apps without the use or in tandem with iTunes.

    Unlock means: the ability to unlock your iPhone to be used with other carriers (it has nothing to do with tether)

    To download the unlock program, you must first already have a jailbroken iPhone and Cydia must be installed, then add the “repo” for the said program “” and then install blacksn0w RC2.

  • Colten

    SJ: go to settings > general > about > all the way at the bottom it will say modem firmware. That’s your baseband.

  • Soren1974

    hi there

    i have followed this but when i install my knew sim i get a “Different SIM detected” “Please connect to Itunes”.

    Sorry I am knew to this, can you please advise me?



  • Monoit

    Got wifi problem after install iPhone 3GS

  • Ripley

    The article says that there is still no unlock for baseband 5.12.07 so does it mean there is for baseband 05.12.01?

  • Wallace

    Can sumone clarify. please.
    cause the post say not for 05.12.07 but what about 05.12.01 will this work?

  • chubidu

    wow this really work on 3gs with 3.1.3 firmware and 05.11.07 baseband does not work on 05.12.01 baseband

  • chubidu

    i said it is not work on 05.12.01 cause i download it in my 3g with that baseband and did not work

  • Alvaro Obiols

    Hey….when do you think we’ll be able o unlock the 05.12.01 baseband with the 05.09 bootloader??? nice blog…

  • daljeet sahota

    hi ! i have iphone 3g 3.1.3 wiht baseband 05.12.01 i have jailbroken my iphone but still wondering if there is any way to unlock , i used redsnow to jailbreak my phone for those who dont know how to jailbreak their 3.1.3 , those can download latest redsnow 0.9.4 and use 3.1.2 ipsw and use it jailbreak their iphone anyone needs any help regarding this can email me at . take care mates !

  • Fred

    I confirm it works on a 3GS with custom 3.1.3 (Baseband 05.11.07 preserved) and old iBoot (untethered).

  • Roberto

    Used on 3gs, with sn0wbreeze 3.1.3 custom ipsw, 5.11.07 baseband, but but new bootrom, MB715LL model, jailbroken, but when i try to use the blacksn0w rc2, it freezes at restart; is there any way to boot from tethered? i tried twice, reinstalling the custom ipsw, but yet, it frooze during respring.

  • chubidu

    @roberto estas seguro que estas bajando blacksn0w rc2, porque eso no pasa con este nuevo.
    sigue bien todos los pasos y veras.
    raro porque si trabaja

  • Roberto

    Tried again this morning, with RC2 0.3. Sn0wbreeze 3.1.3, 5.11.07 baseband, 3gs 16 mb, MB715LL model. Now the installation does not freeze anymore, but the phone does not reboot.
    My question would be: do i have to do the unlock before everything else, meaning, after a fresh restore from sn0wbreeze? Do u think that restoring with all my apps and then do the unlock could be the problem? Or is it a issue still related to the bootrom version that is not the old one?

  • Harddie wondering how to untethered a tetherd 3gs??

  • dj

    how do i downgrad my basband

  • Yahaira

    Well my BF recently purchased an Iphone the firmware was 3.1.3 with 05.12.07 baseband. I was able to jailbreak the phone, but haven’t been able to unlock it. I changed the firmware to 3.1.2 but the darn baseband stayed at 05.12.07 🙁 When will the unlock be available?

  • WC

    I’ve got a 3GS MB model with 05.12.01 on 3.1.3, Is there anyway to jailbreak this phone? I’ve tried redsnow 0.9.4, but at the point the software is installing cydia, iphone goes black and must be reset. I just need a jailbreak, is there anything I can do? Thanks.

  • tony

    One important question:

    I am stuck on 3.1.3 firmware, so which is not yet unlockable. I have my regular AT&T phone sim card… and buy a 3G iphone with 3.1.3 on it.
    I would like to know if I use my sim card (without data plan) on the phone, will AT&T find out about that, and charge me for that?
    Pls note that AT&T representatives say you can’t use the iPhone unless you have data plan… but when I put it in, it works but no data internet and stuff…. So, I am a bit paranoid that they charge me automatically. Since my iPhone is not yet unlocked, will AT&T find out and hunt me down? Any experiences, cases?

    What do you think? comments are welcome, thanks in advanced.

  • Wow. Sticking to 3.1.2.

  • muhammed

    any iphone 3g 3gs or anything i can do hardware unlock mail me the phone with prepaid label on it
    it will cost u 50$ time frame is 5 to 7 business days
    you will lose all ur data
    iphone can be 3g 3gs 05.12.01 firmware is also fine

    all i have to do is put a builtin hole in it which will allow u to use ur fone with any firmware

  • neal

    These companies offering 3.1.3 unlock are all scamsters , dont fall for them , they are worms of the lowest kind , i wish they rot in hell and the money they have ill gotten brings them and the one they are so busy collecting sickness!!!!!

  • buenhec

    Thanks, the Blacksn0w worked on 3.1.3. I was using the other older version I guess from blackra1n and my iphone kept freezing at the pineapple after it downloaded and installed. Good job.

  • Tomo

    anything new for unlock 3.1.3 with 5.12.01 baseband and 6.04 bootloader?

  • martin

    Can any one give a time for unlock on 05.12.01 3.1.3 managed to jailbreak no problem but would like to unlock to use as phone. How long!!!!!!

  • Bharath

    The unlock for 05.12.01 – FW 3.1.3 should be most probably realeased only when OS 4 will be realeased by apple which is touted to be by June 2010. So we should be expected the release of the unlock for 3.1.3 (latest baseband) by then.I am also one of the long list of people waiting desperately for the unlock. Hope we all get it soon.

  • DeeJ

    They say limerain would be released june 1st (tuesday) .. let’s just wait and see what happens.

  • Luis

    I have an Iphone 3Gs 3.1.3 (7E18) Firmware 05.12.01 I jailbreak it and now I am trying to use Cydia to unlock the iphone
    Does anybody know how to? I am trying to use a T-Mobile sim card…
    If so contact me at Thanks

  • ubaala

    the black back of my iphone says 8GB thats all. the screen says “itunes” wit the white cable its comleely unusable. there is noway for me to heckth setting to figure out what baseband it is …
    what are my options


  • IBM

    GEOHOT U ROCK!!!!!!!!!!!

  • buenhec

    I am still having battery issues. Can this be firmware related. With my phone in sleep the battery dies in one day with little to no use. If I turn it off when not in use the battery lasts for days. Anyone?

  • Geohotz

    If you have an Iphone 3Gs 3.1.3 (7E18) Firmware 05.12.01 bootloader 6.4, sorry you will have to wait till the end of this month. Do not act like a dick and us blacksnow, ultrasnow to unlock cause its for old bootloader only.

  • Mikey

    Thanks for the update Geohotz. Good to know an unlock for 3G/3Gs baseband 05.12.01 is in the pipeline.

  • Nawas Khan

    hi Guys U R the Heros DEv TEAMS

  • naveen

    its very good site for learning

  • naveen

    stil iam not finding 3.1.3 baseband 5.12.1.unlock tool please send unlock tool link for my mail id

  • DJ

    Its end of july now…any news on how to unlock 3Gs 3.1.3 (7E18) Firmware 05.12.01. Also how do I check the bootloader?