UltraSn0w 1.2.5 was just released with iOS 5.0.1 support in tow for the iPhone 4 and iPhone 3GS. So, how do you make it work?

Inside, you’ll find a brief tutorial that shows you how to verify if you qualify for an unlock, and how to go about unlocking your iPhone with UltraSn0w 1.2.5…

Step 1: Make sure you have a qualifying baseband.

To check this go to Settings > General > About and check the “Modem Firmware” section at the bottom of the page. If you are on an iPhone 4 and the Modem Firmware says 01.59.00, you can unlock. If you are on an iPhone 3GS and your firmware is any of the following: 04.26.08, 05.11.07, 05.12.01, 05.13.04, or 06.15.00 you can unlock.

If your baseband doesn’t meet the above requirements, stop here. You are not eligible for unlock. iPhone 4S is currently not unlockable.

Step 2: If you haven’t already, upgrade to iOS 5.0.1 and preserve your baseband when doing so.

Step 3: Jailbreak your iPhone 5.0.1.

Step 4: Go to Cydia and search for “UltraSn0w”. Install UltraSn0w 1.2.5.

Step 5: Remove your old SIM card and replace with new SIM card e.g. a T-Mobile SIM. You may need to cut your SIM to fit the micro-SIM slot. See the video for more details.

Step 6: Give your iPhone a few seconds, and it should now be on the new network, courtesy of the UltraSn0w 1.2.5 iOS 5.0.1 unlock.

Unless you got an iPhone 4 at launch and you were very careful to preserve it all of this time, it’s fairly unlikely that your baseband still qualifies. I know mine doesn’t.

Are you eligible for an unlock? Have you unlocked your iOS 5.0.1 installation as of yet? Let us know.

  • I can get any AT&T iPhone unlocked, as long as it was not reported lost or stolen. I can even unlock in contract iPhones (AT&T only). Interested persons may contact me at agag207@me.com use the words iPhone unlock in subject.

  • I have an Iphone 4 with BB: 1.59.00 and running iOS 4.0 (8A293)
    It is tethered using ultrasnow

    I want to upate to iOS 5.0.1 for me to use “assisstive touch” but will I still be able to unlock it using ultrasnow so I can use other simcard?

    Please do reply. Thanks in advance.

  • Adde

    I Had Just Updated My Unlocked iPhone 1st Generation By Mistake,and Now its Locked Again,Please Help me To Unlock it again.Thanks

  • Any unlock for 4S? 5.1.1???

  • Gevorg Gevorgyan

    hello, i need help/advice to upgrade my iphone 4 g 04.10.01 to 5.1.1 or 5.0.1

  • Any updates on unlocking phone? Ugh. I already bought my unofficial sim however i didnt know that the SAM method is no longer working. Sometimes I hate Apple.

  • i have upgraded my iphone to ios 5.1.1 and it’s asking to insert the required sim card (simcard that came with my iphone) but unfortunately i don’t have that sim card, i have gevey sim and i’ve preserved baseband. whenever i try to jailbreak my iphone with redsnow 0.9.12b1 or 0.9.11b4 it stops working. can someone help me please, i want to go beyond that point where it needs required sim card. help me

  • i have a iphone 3gs and mondem-firmware 06.15.00
    and ios 5.1.1 🙁

  • could the unlock support for my country indonesia ?

  • is there still no unlock for 5.1.1 ?? iphone 4s

  • bigj12765

    i was able to get the unlock code for my sim from sprint is that the same as unlocking the phone? my phone has been jailbroke now how do i flash it to verizon

  • Khem Dhungel

    Is that possible in iPhone 4S? Can you please give me some idea about that? Thank you.

  • Ok, I’ve tried everything possible, my iPhone is jailbroken and it should be unlucked. But now comes the Problems. I find my phone company Network, but there is no cover on it? + I can use my Internet Network. but it dosen`t work if i am going to call someone. please help me with this shit!

    I have Iphone 3GS, – version 5.1.1 – Baseband 06.15.00

    But my serienumber: xx112Bxxxxx Why is my network not getting any coverage !!! ???

    I have ultrasn0w fix and ultrasn0w =/ !!!

  • i have iphone 4g gsm 5,1,1 and i cant unlocking pls help me

  • Eddie

    Me too i have 4G GSM 5.1.1 and cant unlock it. I have tried all the links posted but still unlocked. Someone help please

  • Faresawija

    Still no way to unlock iphone 4 with ios 5.0.1 baseband 04.11.08?

  • Prabase kc

    when is the unlock for ios 5.1.1 / basband 04.12.02 releasing?

  • Darius

    Can I downgrade my iPhone 4 (not S) from iOS 6 to 5.0.1 and unlock with UltraSnow ? Modem Firmware 04.12.02… I’ve bought this phone with iOS 6 from ebay and dont have any shsh blobs… I dont think I can use shsh blobs from another iPhone 4 (not S) with the same Modem Firmware ?

  • sally

    heyy i neeed helppp please i have an iphone 4s with a sprint carrier i unlocked it with a gevey sim a month ago it calls but doesnt text or has web yesterday i got a note saying tht my its unlocked i hit accept n it started texting this morning i woke up and it doesnt text anymore it only texted for a day i checked all the settings and restarted it a couple time the note still comes i hit accept but still cnt text help me plzzzzzz

    • sally

      ohh i forgot the sim i put in is AT&T

  • Goran

    Hello, I have iphone 3gs, os 6.0.1. and modem firmware 05.16.07., how to unlock it, please?

  • iphone 3GS iOS 5.1.1 I’ve jailbroken using Absinthe, but now need to unlock. Modem Firmware 05.16.05. Am I now as stuck as I seem to be?

  • Asaduallah Omar

    i luv it its the best iphone ever

  • CHA

    Any ETA on an UltraSn0w version for 5.16.05 firmware for a 3GS on iOS 5.1.1?

  • Hiren

    How to unlock ios6.0

  • Fastomar

    Can you unlock iPhone 4s?

  • My Iphone 4 baseband is 4.10.01 and ios 4.3.3……how to unlock or jailbreak it? pls suggest some information……..

  • My Iphone 4 baseband is 4.10.01 and ios 4.3.3……how to unlock or jailbreak it? pls suggest some information……..

  • PEI

    iphone 4 bacsband 04.10.01 IOS 5.0.1 how to unlock that?

  • Iphone 5

    I have Iphone 5 Version 6.0.1. I bought it from Portugal and when I back to my country “Brazil” it block and dont see my sim card dose have a way to help for unblock it

  • Kaylah

    What happens if your firmware is 05.16.07 on iPhone 3Gs???

  • my iPhone 3GS firmware is 05.16.05, what soft it can be unlocked

  • Chapin

    I’m on 5.0.1 with baseband 05.16.05. How do I install the iPad baseband. And can I do it with out a computer?

  • Samit

    How to unlock iPhone 4
    Plz tell me
    Baseband 04.12.01

  • Andrejbl

    How to UNLOCK 4.12.02 on iPhone 4?

  • Carl

    my BB is 05.16.08 Can I unlock the iphone 3GS with IOS 6.1 ?

  • Carl

    I’ve used the Ulrasn0w to unlock my 3gs Iphone and he recognize the new sim card and carrier but not service. My ios is 6.1 (10B141) with firmware 05.16.08 . How can i make it work? Thanks

  • Vitor

    if I have no old sim card with me , It words

  • Vitor

    If I have no old sim card with me , It works?

  • hey there, my Firmware is 04.12.05
    Version 5.0.1
    will it work? thanks

  • Loammi Polanco

    sprint iphone 5 never going to be unlock????

  • Wail Bouymaj

    I have an iPhone 4 baseband 04.11.08 and iOs 5.0.1
    So what should I do to unlock mine please help me

  • Victor Okoro

    HiI I need help to installing the 5.1.5 Jailbreak firmware I just download from this website

  • officialimeiunlock

    you can unlock your iphone at officialimeiunlock com

  • don’t try this at home unless you want your iphone damage

  • leave a comment here

  • joel daduyo

    i have an iphone 4 BB 04.12.09 can i still unlocked it with JB?? my phone is already jailbroken…

  • deejay kenny

    my iphone 4 gsm ios 5.0.1 BB 04.12.09 can unlok pls help…thank

  • Christopher Fuller

    can u recommend a way to unbrick my iphone 3gs, i tried to update it but didnt realise it had been jailbroken.

  • siddique

    please attention guys i need help
    my iPhone 4 iOS 5 is in the beginning sim activating mode,how can i skip that and then i jailbreak it and go further?

  • siddique

    please attention guys i need help

    my iPhone 4 iOS 5 is in the beginning sim activating mode,how can i skip it and then i jailbreak it and go further?