Is SAM Necessary for Factory Unlocked & Jailbroken iPhone 4?

Hi Kyle, SAM or Subscriber Artificial Module was designed specifically to fix some iPhone battery drain and push notifications issues that occurred on the iOS device after jailbreaking and unlocking the hardware. It is also used (mostly by iPhone unlockers) to activate the iPhone if the user doesn’t have the original or official SIM card of the phone in order to activate the device to iTunes. This very helpful utility has capability to trick the iPhone and iTunes into creating legitimate activation tickets even though the device was unlocked with Ultrasn0w or Gevey SIM Pro. In simple words, you’ll get the full benefit of push applications and your battery life increases substantially when you install SAM on your jailbroken.

Anyway, if you are having some issues on the device’s battery as well as on push notification, then I would recommend you to keep SAM running on your device as it helps you to boost the performance of your iPhone. On the other hand, if you don’t think that SAM helps your device, then you can easily uninstall it on your device by launching Cydia from the SpringBoard of your jailbroken iOS device and navigating to the Manage tab. Just look for SAM under the Manage tab and then uninstall it. After removing SAM, connect your iPhone to your iTunes and then activate (since you were using a factory unlocked iPhone and you are in UK, you can activate your iPhone using O2, Vodafone, T-Mobile, Orange, or Tesco Mobile SIM cards. iPhone 3G users can only use O2 SIM card when activating to iTunes).