How to Install Android 4.4.4 on Galaxy S2 I9100 with C-ROM Custom Firmware

The latest version of C-ROM, which is based in a number of popular custom ROMs such as AOSP, CyanogenMod, AOKP, ParanoidAndroid, CarbonROM and OmniROM, is now available for Exynos 4210 powered Galaxy S2 (GT-I9100). Along with the Android 4.4.4 update, v7.1 brings original C-ROM features for Galaxy S2.

C-ROM features

Peek
App Side Bar
On The Go Mode
Pie
Floating windows
Active display
Animation control

C-ROM v7.1 changelog

SystemUI FC Fixed
Theme Engine Fixed
Wallpapers Fixed
Added HOVER With All Options
QuickSettings: Added ProfileTile
Protected App
Dual panel
Show statusbar in expanded desktop
Framework: add compass tile
Framework: add camera tile
Implement ad blocker
Allow disabling of FC dialogs
Expose heads up
Add time-context headers to the notification header
New UI C-RoM OTA
Base: Allow hiding notification icons
Add option to change size of QS ribbon bar
Add Dialpad key padding
Bring back Density changer to C-RoM

If you want to update your Galaxy S2 to Android 4.4.4 using C-ROM, check out the following installation method.

Points to remember

Install USB Drivers for Galaxy S2 to transfer files between the Android device and the computer.
Enable USB Debugging Mode on the phone to connect it with the computer and use Android SDK with it. [Navigate to Settings>> About phone. Tap on Build Number several times until a message appears saying 'You are now a Developer.' Now enable USB Debugging Mode by navigating to Settings>> Developer Options.]
As the tutorial might wipe out all data of the phone, create a backup using any custom recovery such as ClockworkMod or, TWRP.
The Galaxy S2 should have above 80% battery charge to avoid unusual shut down during the process due to lack of battery.
The phone should be rooted and have the latest version of CWM recovery.
Android 4.4.4 C-ROM works only with Samsung Galaxy S2 GT-I9100. As applying this to any incorrect variant might brick the device, verify the model number of S2 by navigating to Settings>> About phone>> Model number.
After flashing the ROM if the device gets stuck on Booting animation or experience boot loop then perform wipe cache partition and wipe dalvik cache for a few times before rebooting the device.
Once the ROM is installed, users are advised to give 10 minutes to the ROM after the device boots up for the first time for better user experience.
IBTimes UK reminds its readers that it will not be held responsible for any damage to the device.

How to install Android 4.4.4 on Galaxy S2 I9100 via C-ROM

Step-1: Download C-ROM Android 4.4.4 for Galaxy S2

Step-2: Connect and mount Galaxy S2 USB memory on the computer using USB cable. Now copy the downloaded zip file to the SD card of the phone. Ensure the file is in the SD card root, not in any folder

Step-3: Unplug the USB cable from the phone and switch it off

Step-4: Boot the phone into CWM recovery mode. Turn the phone on while pressing and holding Volume Up, Home and Power buttons together

Step-5: In recovery mode, perform a full data wipe by selecting wipe data/ factory reset. Use the Power button to select while in Recovery Mode

Step-6: Perform a cache wipe by selecting wipe cache partition

Step-7: Perform a wipe of dalvik cache. This is optional but users are recommended to do this, so that the device will not get into boot loops or any other errors. From CWM recovery, go to advanced then select wipe dalvik cache

Step-8: Return to the main recovery menu and select install zip from sdcard

Step-9: Select choose zip from sdcard. Using the Volume keys navigate to Android 4.4.4 ROM zip, which was earlier copied to the Phone's SD card. Select it using the Power button and confirm installation on the next screen

Step-10: When the installation process is completed, go to +++++Go Back +++++ and reboot the phone by selecting reboot system now. The phone will take about five minutes to boot on the first time

Your Galaxy S2 should now be running C-ROM featuring Android 4.4.4.

[Source: Team Android]