Chinese iPhone hacker Loktar_Sun has released a method for unlocking a jailbroken iPhone by yourself using Sam Bingner’s SAM (Subscriber Artificial Module) package.

The unlock technique has been verified by iPhone Dev Team member MuscleNerd. He was able to unlock his iPhone 4S and get it running on T-Mobile’s network.

This is very big news for iPhone owners everywhere, and means we don’t have to wait for AT&T to unlock our phones if we want to use it on another GSM network.

Check inside for more details…

Note: See our latest video tutorial for more hand-on details.

Once you have the package, follow the instructions found here for the full unlock details.

How to unlock your iPhone 4S, iPhone 4, etc

Step 1: Step one: Install Sam Bingner’s SAM (Subscriber Artificial Module) package. I recommend that you get it from since older versions have a different interface and may not work for this purpose.

Step 2: Enter SAM by either going through the settings menu or find the SAMPrefs icon on your springboard. You will need to have the SIM card you intend to use in your phone.

Step 3: Go to utilities and select “De-Activate iPhone”, your ActivationState under “More Information” should now be “Unactivated”

Step 4: With SAM enabled, choose “By Country and Carrier” in “Method”; find your carrier, for some carriers operating more than one Carrier ID you may need to select “SIM ID”; if you pick the wrong one this won’t work.

Step 5: Go to More Information”, copy or write down the IMSI in “SAM Details”, then tap “Spoof Real SIM to SAM”.

Step 6: Go back to the main SAM screen and change your “Method” to manual. Paste or enter the IMSI string we saved in Step 5.

Step 7: Connect your iPhone to your computer and allow iTunes to activate it, double click “Phone Number” parameter at the main device screen and make sure that the ICCID matches that of your SIM card. If not you need to start over from Step 1.

Step 8: Unplug your phone, close iTunes.

Step 9: Disable SAM. The source article says to uninstall SAM and delete your lockdownd profiles; it’s unnecessary.

Step 10: Connect your phone to iTunes again, you should get an error saying that your phone cannot be activated. This is normal. Just close iTunes and open it again.

Step 11: You should see signal bars in a short time, congratulations.

Step 12: Push notifications may stop working after this procedure but can be easily restored by “clear push” utility in SAM followed by connecting to iTunes.

The SAM package can be downloaded by adding the following source to Cydia:

We’re in the process of testing this for ourselves, and will be back with a full report once we have unlocked our iPhone successfully.

Note: according to the tutorial, this unlock method will only allow you to use the SIM card that you use to unlock your phone with, so you will not be able to freely switch between SIMs. It’s an unlock, but it apparently still has limitations when compared to a true factory unlocked phone.

For that reason, if you’re on an older out of contract device with a provider like AT&T, we still recommend you follow our previous method for unlocking by contacting AT&T directly.

More details to come soon. What do you think?

Update: I have personally confirmed this works. My iPhone 4S is now running on T-Mobile.

  • plzzzz i din’t have original SIM carte 🙁

    • Use gevey sim insted of the original sim copy IMSI then remove gevey and proceed as posted,,, worked for me!

  • You do not need original sim card.

  • Anonymous

    ***WORKS ON SOFTBANK – JAPAN*** It does work with Softbank (Japan carrier). Do not follow step #6. Instead select “By Country and Carrier” then search for Japan and Softbank. Use IMSI 440208 (default for Softbank)

  • Hi.

    I’ve got an iPhone 4, currently on 5.0.1 AT&T, BB 04.10.01, and currently unlocked by a Gevey sim.

    Will this method work for me? I wanna be dead sure!

    and after this I will never need to use a Gevey sim again? 😀

    Help will be much appreciated!

    • Yes, it will :0) best gift ever!!!!!

      • Anonymous

        Hey i have a doubt….i have got the same iphone 4 on 5.0.1 & base band 4.10.01 & im using gevey sim to unlock network…. but i dont know which carrier am I locked to ???
        So should i select the current sim im using with gevey or I have to select the original carrier ??

      • Copy simid you see when using gevey them remove gevey and proceed as posted

  • fuck ?????? wat ta fuk is SIM ID?????

  • wow finally work with iphone4 5.1(9b176) modem 04.12.01

  • Erkin Ejupović

    how do I check if my iphone on IMEI blacklist ?

  • Yes, sure it will. Just follow Full guide by Googling: “senseiphone sam unlock”.

  • The video shows that the voice part works but there was no mention if the data part worked with T-mobile, does anyone know if the data works by unlocking this way???

  • Manjeel Shilpakar

    what if we don’t have original SIM Card..can anyone upload the video where we don’t have original carrier SIMCARD and unlock using SAM..

    • Original SIM don’t mean the first simcard…. Just mean the iphone sim that is working alread on that iphone a working sim…

    • OK guys if you notice you have to start with live Sim like AT&T in the video, or what ever your iPhone locked to in your country. He’s copying information from live Sim to SAM to emulated to new Sim like T Mobile in the video or what ever you are trying to unlock in your country.

  • I can’t get to cydia. I am stuck on the activation screen. I can’t even make emergency calls

    • Connect the iPhone to the computer. Run redsn0w. TURN OFF and only then put your iPhone into DFU mode. In redsn0w press jailbreak and uncheck all the boxes. After it’s done your phone will be able to pass the activation screen.

  • i did unlock my AT&T carrier on Mobily Saudi Arabia but i don’t know what i actually did… :P. I was try manually, auto and country and carrier unlock. at last it appear invalid sim. i de activate, remove sim and power off device and power on back with connected iTunes… it’s work. I don’t understand how it work even i did de activate and not press activate yet… !!! amazing. try more and more time friends it will be work.

  • tome03330

    I did it on iPhone 4 5.1, what can I do to disable cydia so I don’t have to boot tetherd, I saw that someone write that he disabled cydia and mobile substrate and that he is now booting unthetherd

  • Vikas Soni

    Awesome 🙂
    Great hard work……..also using on iPhone 4 Bell/Canada unlock, Great working also iMessage & Facetime…….

    Great hard work 🙂

    iOS 5.0.1
    BB 03.10

    • Hi Vikas, how do you get iMessage and FaceTime working? Did you tweak any settings? Pls kindly let me know how. Thank you! DD

  • Just unlocked an iPhone 4 running 5.1 on baseband 4.12.01 succesfully. It worked like charm. I can’t see any difference between this AT&T iPhone 4 and my factory unlocked iPhone 4.

  • Hussein Essayli

    I messed up while copying and pasting the IMSI numbers. I messed them up, under sim details and sam details. I tried removing the package and re-install it. That didn’t work. I tried restore activation and it gave me a message saying, “Restore reports Failed: Unable to fetch activation record”…….Please help im not sure what to do. thanks guys.

  • Worked flawlessly with my ATT i4 on Claro and Tigo in Honduras……great tool.

  • Ryan Lynch

    nothing is working for me!! I am unlocking for T-Mobile and every time i plug the phone into iTunes (yes i have tried every single SIM ID) it says invalid sim. Help me please!!!

  • steve randle

    Please explain this action a liitle more…in Step 7 ….”double click “Phone Number” parameter at the main device screen ” ….where do you find the “Phone Number” parameter? and is it on Itunes or the phone? Thanks

  • Ravin

    HI all kindness guys…. Can U help me?? 🙁 I have Iphone4s use gevey sim, from japan, I don have Original sim, but now I live in Cambodia, now it jailbreaking ! it’s running on 5.1.1(9B206) and Modem Firmware 3.0.04 Can I use this method to Unlock my Iphone to Original? can I stop use Givey sim by this Method?? I need U help me.. 🙁

  • Ravin

    HI all kindness guys…. Can U help me?? 🙁 I have Iphone4s use
    gevey sim, from japan, I don have Original sim, but now I live in
    Cambodia, now it jailbreaking ! it’s running on 5.1.1(9B206) and Modem
    Firmware 3.0.04 Can I use this method to Unlock my Iphone to Original? can I stop use Givey sim by this Method?? I need U help me..

  • can we factory unlock of jphone from this method if then plz email me