If you are facing errors in unlocking your iPhone even after jailbreaking it, and still you want to use another SIM i.e. other than the one with you have contract. There is a good news for you that a new unlock is available that you can try to unlock iPhone, this new method for unlock jailbroken iPhones has been announced and released recently which uses Sam Binger’s Subscriber Artificial Module (SAM) package in Cydia. Remember you are able to run Cydia after jailbreak. So once you get your iPhone jailbreak follow below steps to unlock your iphone.
Update 28-April-2012: Due to a recent patch fixing from Apple this unlock may not work.
Start Cydia and install Sam Bingner’s SAM (Subscriber Artificial Module) by going to Cydia …> Resources ….> Add and now type “repo.bingner.com” and click add.
After the source is added successfully. Open the SAMPrefs by going to your Springboard.
Go to Utilities and then choose to “De-Activate iPhone”.
Go to the “Method” section and Select “By Country and Carrier”, and choose your carrier.
Tap “More Information”, and taking note of your IMSI in the “SAM Details” section, continue to “Spoof Real SIM to SAM”.
Go back to the main SAMPrefs screen and change the “Method” to manual. Then enter the IMSI which you noted in previous step.
Now connect you iphone into your computer and run iTunes, after your phone is visible in main iTunes window double click on “Phone Number” to make sure that the ICCID matches that of your SIM card and disconnect your iPhone from your computer.
Plug your iPhone back in your computer and restart iTunes if it says your phone cannot be activated. Now it is unlocked.
You may face issues with push notifications, don’t worry just use the “Clear Push” utility in SAM and reconnect to iTunes.
I believe by following the above steps your phone will be unlocked and will work on any GSM network.
Many people want to unlock their mobile phones in order to use the alternative SIM cards, usually at the end of the initial contract period or during that time. As you are aware most of the iPhone’s are “locked” to a particular network i.e. iPhone by AT&T in the US and by O2 in UK.
Most of us need to use our phones with different carriers while we are are travelling or sending our mobiles as gift to other countries, but can not use due to its locking to the native carrier. Therefore we need carrier unlock iPhone, by unlocking the iPhone you can be able to place calls with any GSM carrier by inserting different Subscriber Identity Modules (SIMs) into the phone. After iPhone is unlocked you only need to buy any local GSM-compatible SIM and put it in your iphone to make your calls hence avoiding using the iphone with roaming and paying lot for roaming charges.
I have given below the complete list of iPhone’s which are now available in the market. It is suggested to fist ensure that your iphone is unlock-able, before going for any jailbreaking or unlocking process:
You have to first jailbreak your iPhone and then you can install the unlock tool like UltraSn0w. As always instructed make a backup for your device before starting any jailbreak or unlock activity.
Click below link to get the TPSIM unlock for iphone 4s/4. China dev team has released TPSIM (tp sim) that is used to unlock iphone 4S and unlock iphone 4. This tpsim is same like the Gevey SIM but there is a difference that TP SIM does not require emergency call for activating the unlock after it is inserted. This unlock for iPhone 4S is at the pre-order stage and the availability is limited, which will start in the last week of February 2012.
TPSIM unlock is plug and play therefore no jailbreak is required, you don’t need to dial 112 to activate after the first time initialization. TPSIM iphone 4s unlock supports 3G, EDGE, MMS and Facetime. Supported basebands for iPhone 4S are 1.0.11, 1.0.13 and 1.0.14. Also supports iPhone 4 unlock baseband 1.59.00, 2.10.04, 3.10.01, 4.10.01. TPSIM unlock does not supports to unlock iphone 4 at baseband 4.11.08. Since this unlock does not require jailbreaking or any other hardware alteration or modification therefore this will not affect your warranty. TPSIM unlock works for all worldwide networks. TPSIM is equipped with high performance original F981 chip which operates on ultra-low voltage
This iphone 4S and iphone 4 unlock is available @ $ 84.95 and the price includes standard shipping all over the World, you can visit this link for TPSIM download.
You can visit this link if you want to unlock your iphone free for using Ultrasn0w.
You can watch below video how the Unlock for iphone 4S works.
If you own an iPhone4S and you are planning for future jailbreak and unlock of your device so that you can change your operator. You should not update your device to 5.0.1 and should keep yourself bound to 5.0 so that it is easy for you to unlock in future because if you jailbreak 5.0.1 there is risk that you may not unlock (once it is released). May be downgrade is also not available in future which you can do now.
It was confirmed by MuscleNerd to iClarified that an untethered iPhone 4S jailbreak for iOS 5.0 will be released at the same time as the iOS 5.0.1 jailbreak, or a day or two later.
This is a standard procedure that if you are looking to unlock it is better to stay at the lowest possible baseband.
To take you out of the confusion I suggest you that if you have upgraded your ios to 5.0.1 you need to downgrade from build 9A406 to 9A405. Go to Settings –> General —> About and check the version. if it is 5.0.x (9A405) it is OK if it is 5.0.1 (9A406) you need a downgrade. Download the suitable firmware for your device by clicking Here. This is right ime to act because Apple is still signing both builds and they may stop this very soon since ios 5.1.0 is due to be released and beta version was released for developers.
Since new untethered jailbreak for iOS 5.0.1 has been released yesterday other related tools and tweaks are also now available, today Dev team has updated PwnageTool 5.0.1 for untethered iOS 5.0.1 jailbreak that allows users to generate custom IPSW while preserving baseband that makes unlocking possible with UltraSn0w or Gevey SIM.