Good news for iPhone 4 and iPhone 3GS users. Now you can activate your iPhone 4 / 3GS using SAM. SAM (Subscriber Artificial Module) has been updated to fix the Stockification Failure error on jailbroken iPhone running iOS 4.3.1 or iOS 4.3. Using SAM you can officially activate your iPhone without official carrier SIM. SAM enables Push Notifications. It fixes “Cannot connect to YouTube” error and the battery drainage issues. You should note that you will need to have jailbroken iPhone to install SAM. Simply follow the steps posted here to jailbreak your iPhone 4 or iPhone 3GS on iOS 4.3.1 using Sn0wbreeze 2.4b1. Now follow the steps posted below to install SAM on iPhone 4 / 3GS.
How to install SAM on iPhone 4, or iPhone 3GS
STEP 1. Launch Cydia on your iPhone 4, or iPhone 3GS.
STEP 2. Simply tap on the Manage tab.
STEP 3. Now tap on Sources.
STEP 4. Now tap on the Edit button and then tap on the Add button. Now type http://repo.bingner.com as Cydia/APT URL and then click on Add Source button.
STEP 5. Now Cydia will update your sources list.
STEP 6. After that click on the Search tab and then enter SAM in search filed.
STEP 7. From the search results, select SAM. In order to install it simply click on the Install button.
STEP 8. Simply click on the Restart Springboard button after the installation is complete.
That’s it. In this way you can install SAM on your jailbroken iPhone 4, or iPhone 3GS. If you found any difficulty in following the above steps then feel free to ask in the comment section below.