Ok guys, just a short update. Here I’ll give you the easy step to upgrade your iPhone to OS 3.o.

Before we start, make sure you are using iTunes 8. If you don’t have it please download in here.

Let’s start:

• Connect your iPhone to your computer.
• Open iTunes 8 and select your iphone under Devices in the Source List.
• In iPhone Summary Pane, click Check For Update button.
• Finally click Download and Install.

Now your iPhone will upgrade the OS to OS 3.o. CAUTION! Please do not disconnect your iPhone until the update has finished.