How To Flash Samsung Galaxy SII (I9100G) With Jelly Beans

In my last post titled Root Samsung Galaxy S-II (I9100G) i had gone through all the steps for rooting your Samsung Galaxy SII Device. Now lets see how to flash Rom with Jelly Beans i.e.Android 4.2

Requirements

• Cynogenmod 10.1 ROM
• Google Apps Installers
• USB Cable
• PC/Laptop
• Samsung Kies (Check if already installed on your PC.If not, install it first)

 Before starting with installation process please backup your data. It is easy to import data via Samsung Kies to your PC.
 
Important :  Make sure that your device is already rooted with Cynogen Recovery Mode configured. If
this is not done then please refer this link :  Root Samsung Galaxy S-II (I9100G)

Steps for flashing ROM

1. Transfer files Cynogenmod 10.1 Rom and Google Apps Installer into Internal or External SD card of phone. 
2. Start device in Cynogen Recovery Mode. To start in Cynogen Recovery Mode first Turn off the phone and wait for 1-2 minutes after phone is completely switched off. Now press Volume-up + Power-off + Home button of your phone simultaneously. Phone will start in Cynogen Recovery Mode.
3. Now select option Install zip from SD-card  and select the path where Cynogenmod 10.1 ROM's location. (Volume button is to used to move up and down in options and Power button for selecting a option in CM Recovery mode)
4. Select Yes and wait for ROM to be installed.
5. Next, select same option Install zip from SD-card and select path where Google App Installer zip is present in SD card . Confirm your installation by pressing selecting Yes.
6. Let it finish installing all Google Apps. Now Reboot the Phone.

Hurray!!...You installed Jelly Beans in your Galaxy phone.

Now Enjoy your phone with completely new and re-defined UI and features...:)

     

Root Samsung Galaxy S-II (I9100G)

Have you decided to install custom ROM on your galaxy device??...Well!!....nice decision..

So here's a tutorial on how to make it easier and hassle free...

First of all to install Custom Rom you need to Root your Device. Rooting Device means to give super user permission so that programs/applications can access root.

Before Starting with this process i would recommend you to note down your latest OS kernel. To get kernel Version go to "Setting" then "About Phone" option. There you would see kernel  version. Note down this kernel version. Although we won't be using this anywhere in whole process. But it is safe to note it down somwhere.....

Requirement

• Samsung Galaxy SII I9100G (Make sure that version is same. You can verify same from "About Phone" option in "Settings" )
• Laptop /PC (Win XP/7 Preferably)
• USB Cable
• Root_S2_i9100G File
• Odin 3 v 1.85
• Samsung Kies  

Follow These Steps to Root it...

Install Samsung Kies in your PC (it not installed). After installing kies connect your phone to Kies via USB cable. This is to make sure that all required drivers are installed successfully. Disconnect Device from PC after this step.

Power off your Phone. Phone should completely be off .Wait for 1-2 minutes after it is completely off.

Now Start Device in Download Mode by pressing Volume Down Key, Power Button and Home key simultaneously.
                                                        

            Press Volume up Button to enter in Data transfer Mode (At this time if u feel like quitting the  process  then just press power button for few seconds. Phone will Reboot Automatically)

       

        Start Odin in PC by clicking odin3 v1.85.exe and connect Phone to PC.In Odin at ID:COM  it should appear the USB cable as connected(COM1,COM2 etc) .Yellow Bar with something as COM shows that the device is recognized.

   

Auto Reboot and F.Reset time check-boxes should be checked in Odin window Rest all check-boxes should be unchecked. (As shown in above screenshot)

Click on PDA command button and select Location where Root_S2_i9100G File was downloaded in PC.

Click Start and Have coffee (or tea) till Odin shows "Pass"...

Congratulations!!....

You Successfully Rooted your  Device... :)

Restart Device and to check if device is successfully rooted  download app named "Superuser" from Play Store... It will check and will inform you if device is rooted or not...