How to update Galaxy S2 I9100 to Android 4.1.2 XenonMOD Jelly Bean

How to update Galaxy S2 I9100 to Android 4.1.2 XenonMOD Jelly Bean ... Now user can  update Galaxy S2 I9100 to Android 4.1.2 XenonMOD Jelly Bean.

Here is the complete tutorial how you can it. Before going to forward, do not forget to backup all your personal data and apps.

Android 4.1.2 XenonMOD Jelly Bean Firmware Details:

•     Deodexed, Rooted & Zipaligned
•     Almost Pure Stock Themed
•     No Home Button Lag
•     Extended 4 way reboot
•     Extended Notification Panel
•     Multi-Window
•     Added shutter sound options to Camera
•     Speed enhancements
•     Battery time enhancements
•     Call Recording added
•     Ripple Effect on Lock Screen
•     Unlimited SMS recipient list
•     No SMS to MMS convert
•     Automatic SMS encoding
•     Extended Stock Status bar
•     Disabled scrolling cache
•     Enabled check spelling
•     Large APN list
•     No incremental ringtone
•     Enabled Sensor aiding for fast GPS lock & better battery life
•     4 Shortcuts on the Lockscreen
•     Clean build.prop for best Market compatibility
•     Kies support
•     Call Button on Contacts List
•     Swapped Call and Video buttons on the Dialer
•     Replaced Video Call button with Message button
•     “Official” Status on Settings menu
•     Hacked Email App
•     Unlimited Wifi AP clients
•     Unlimited Contact joining

 1. Enable the Debugging Mode. By enable the debugging mode you can connect own android phone with PC.

2. You should check your battery. Your batter should be 80% to 85% charges. If your phone will be off during flashing ROMs or installing mods and updates due to low battery. Then your Phone will be dead permanently.

3. As, i told you. You should back up all your date. You will need it for new ROM.

4. Your Phone should be Unlocked.

Now we move forward and important part.

Here is the complete detail in different steps.
Read the all steps carefully.

Step 1
Download Android 4.1.2 XenonMOD Jelly Bean for Galaxy S2 to your computer.

Step 2
Connect and mount your Galaxy S2 USB memory on your computer using the USB cable.

Step 3
Now copy/paste the downloaded Android 4.1.2 ROM zip file to your SD card. Make sure the file is in the SD card root (not in any folder).

Step 4
Then turn OFF your phone and disconnect from the USB cable.

Step 5
 Now to get in the Recovery Mode. Switch ON the phone while pressing and holding the Volume Up + Menu + Power buttons.

Step 6
In ClockworkMod recovery, perform a full data wipe first. Then scroll down to “flash zip from SD card” and press the Power button to select it.

Step 7
Press the Power button again and select “choose zip from sdcard”.

Step 8
Now using your volume keys, navigate to the Android 4.1.2 ROM zip file that you copied to your SD card and select it using the Power button. Confirm the installation on the next screen and the installation procedure should start now.

Step 9
After the installation completes, go to “+++++Go Back” and reboot the phone by selecting “reboot system now” from the recovery menu. The phone will boot now and it might take about 5 minutes to boot on your first time. So, please wait.

Now Galaxy S2 I9100 updated to Android 4.1.2 XenonMOD Jelly Bean.