SAM (subscriber artificial module) allows you to do official activation on an iPhone running on iOS 4.2.1 or later without a stock SIM. This tweak has updated to fix the ‘Stockification Failure Error’ on jailbroken iPhone running iOS 4.3.1 or iOS 4.3.
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.
Follow the steps posted below to install SAM on iPhone 4 / 3GS.
Step 1: Launch Cydia.
Step 2: Simply tap on the Manage tab.
Step 3: Now Tap on SOURCES and then Tap on EDIT > ADD > http://repo.bingner.com> ADD SOURCE.
Step 4: Now Cydia will update your sources list.
Step 5: Tap on SEARCH and Type SAM in the search box. Now, select SAM and Tap on INSTALL.
Step 6: Tap on RESTART SPRINGBOARD once installation is complete.
That’s it. In this way you can install SAM on your jailbroken iPhone 4, or iPhone 3GS.