Back to Samsung Firmware - part 2

It's time to get the root access. This operation can be accomplished in two steps.

1. Install a CWM (ClockWordMod) recovery
2. Install a zip file that allows to gain root access

The first step is needed because there's no way to install a zipped program into the phone without having a CWM recovery installed. Specifically, we will install the PhilZ kernel (for more info check this out).

Ok. Let's start.

1. Download PhilZ kernel.
2. Be sure the phone is switched off. 
3. Start it and press simultaneously VOLUME UP + HOME + POWER keys
4. Follow the instructions on the phone
5. Start Odin
6. Connect the phone to PC via USB cable
7. Click on the AP button in Odin window and load PhilZ kernel
8. Click on Start button. The transfer begins.

When the procedure terminates, the phone restarts. Now you will notice a yellow triangle just under the phone name. It indicates the phone kernel has been altered someway. Don't worry about it: it's possible to get rid of it. We will do it later, For the moment just forget about it.