Kudos to hackers and researchers! They have found a new method to unlock any iPhone, whether it is iPhone 4S, iPhone 4, or iPhone 3GS, running on iOS 5.0, iOS 5.0.1 or iOS 5.1, even having the baseband 0.4.11.08. This new method involves the use of SAM which is exclusively available through Cydia Store. So, this technique will work only on JAILBROKEN iPhone.
Two days ago we reported how you can get the official unlock on your device without losing jailbreak. But this unlock method works on any iPhone which is not blacklisted by the carrier.
Here is How You Can Unlock Any iPhone on iOS 5.0 or Later Using SAM:
Step 1: If your device is not jailbroken, you can get an untethered jailbreak for iOS 5.0.1 and iOS 5.0 using the latest version of Redsn0w. For iOS 5.1 users the jailbreak is still tethered.
Step 2: Launch Cydia and add this Repo http://repo.bingner.com by going to Manage -> Sources -> Edit -> Add.
Step 3: Now search SAM in cydia and install it.
Step 4: Now insert the SIM you want to use in iPhone and launch SAM from settings.
Step 5: Go to Utilities in SAM and de-activate the Phone.
Step 6: While SAM is enabled on the main screen, select “By Country and Carrier” method. Now select your carrier. In case your carrier operator has more than one SIM ID , choose the correct SIM ID otherwise this method won’t work properly.
Step 7: Now go to More Information, and copy or write down the IMSI number under SIM details. After you have noted down, tap on Spoof Real SIM to SAM.
Step 8: Go to main screen of SAM and select the Manual method. Paste the IMSI string.
Step 9: Now connect your device with iTunes to activate it. Double click on Phone Number to make it sure that the ICCID matches that of your SIM card. If doesn’t match, repeat the method.
Step 10. Now disable SAM and reconnect iPhone with iTunes. You will get the message that iPhone is not activated. Simply ignore it, close iTunes and re-launch it. Now you will see the signal bars on your iPhone.
If you unlocked your iPhone with this method, please share your experience with other in the comments below.
Update 1X: After you have successfully unlocked your device, please save the lockdown directory for later use. You should backup the activation ticket every time you use a different SIM card and unlock iPhone.