Galaxy S2 i9100 How to install official Android 4.1.2 Jelly bean

Good news for the Samsung Galaxy S2 owners, now they can install a leaked test official Android 4.1.2 OS on their smartphone, with the latest samsung touchwiz and all other official samsung applications up to date, for me I consider this one of the best official OS from Samsung with an improved UI and touchwiz experience.

The Samsung Galaxy S2 smartphone still a solid product even after two years from it's release, with a great performance powered with a dual core CPU and a big clear AMOLED screen, this smartphone still rocks.

So to install the latest Android 4.1.2 official release on your Samsung Galaxy S2 i9100, just follow the steps bellow.

official Android 4.1.2 Screen-shots:

Note: if you don't know what you are doing stop, and go read something else!

First thing first download these files which required to the upgrade process:

Android 4.1.2 Jelly bean ROM (by Sammobile)
Modem file I9100XXLS6.tar.
CSC file CSC_HOME_OXX_I9100OXXLS1.
Odin tool.

Now follow these steps carefully:

Install Samsung kies if it's not installed.
Run Odin tool.
Restart your Galaxy S2 into download mode with Home+power+vol down
Connect your Galaxy S2 to the computer and wait for the driver installation, a yellow sign must appear on Odin.
Now click on PDA and select the CODE_I9100XXLSJ.tar file.
And click on Phone button and select MODEM_I9100XXLS6.tar.
Finally click on CSC and select CSC_HOME_OXX_I9100OXXLS1.tar.
Dont select the re-partition option.
Do some prayers and hit Start.