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How to update Samsung Galaxy S2 GT-I9100 to Android 4.2 2 Jelly Bean using Chameleon OS Custom Firmware

by Prashant SharmaApril 30, 2013

In this tutorial we will guide you step-by-step on how to update Samsung Galaxy S2 GT-I9100 to Android 4.2.2 Jelly Bean using Chameleon OS (ChaOS) custom firmware.

Chameleon OS Android v4.2.2 Jelly Bean provides an immense exhilaration to those Samsung Galaxy S2 GT-I9100 users desiring to enjoy the features of Jelly Bean 4.2.2 ROM. Chameleon OS, also known as simply ChaOS, is undoubtedly the most greatly acknowledged unauthorized Android ROM which is spreading at a very high speed and day-by-day they are increasing their compatibility with numerous old and freshly arriving Android devices from different manufacturers, including our Samsung Galaxy S2 GT-I9100.

Many reviews show that Chameleon OS provides much more facilities than the official Android firmware. Installing Chameleon OS Android 4.2.2 Jelly Bean on your Samsung Galaxy S2 GT-I9100 will enable its user to sustain in the Jelly Bean environment.

After installing Chameleon OS on your Android device, you’ll attain full access to your entire system, and then can easily run all those unpermitted apps which you couldn’t previously on the official ROM since they need root permissions. Chameleon OS will also assist you to manage app permissions, enable Tethering, and disable bloatware, etc.

Benefits by installing Chameleon OS

  • Through installing Chameleon OS on this phone you can get full access into your phone’s internal file system, and thus you can also make potent modifications in them.
  • Chameleon OS will also benefit your device by improving the performance and also by enhancing the speed of operating system of your Android device.
  • One may feel some sort of irritation when he gets undesired default apps in his Android device by the manufacturers and that too without any uninstall option. In this case, if you have Chameleon OS you can easily remove the unwanted apps from your device.
  • It will surely increase battery pack up of Android devices.
  • Installing Chameleon OS will also enhance the visual experience of your Android device.

Samsung Galaxy S2 GT-I9100 is featured with 1.2 GHz Dual-core Cortex-A9 Processor, a RAM of 1 GB, and a 16 GB internal storage. Like the previous Samsung’s smartphones, it has also created a large user base or fan base. With an affordable price range, they also have provided some really good features with an elegant design and stunning look.

Disclaimer

This tutorial will definitely work on Samsung Galaxy S2 GT-I9100. While working of it on other devices is not yet confirmed. On applying this tutorial to another model or device may give an unwanted result. While applying this update we will not be responsible if anything occurs to your device, so continue at your own risk.

Just follow the simple steps given below:

Pre-Requisite

  1. For successful completion of this installation process charge your phone up to a minimum of 75% battery.
  2. You must take a back-up of all your personnel items and other impotent data, such as Call Logs, SMS, Contacts, Audios, Images, Videos, APN (Access Point Names) settings, Bookmarks, MMS settings, on your phone.
  3. Please ensure that all your security suites, like firewall and antivirus, on Samsung Galaxy S2 GT-I9100 as well as on computer must be disabled.
  4. You must enable USB Debugging mode on your Samsung Galaxy S2 GT-I9100. Just follow, Settings –> Applications –> Development –> USB debugging. There select the USB Debugging icon.
  5. You must have rooted down your Samsung Galaxy S2 GT-I9100 before applying this tutorial.
  6. If you have not, then you must unlock your Android device’s Bootloader.
  7. One must install a custom recovery image particularly for his Android device. To do this, you can download ClockworkMod Recovery or TWRP Recovery and then install it over your Samsung Galaxy S2 GT-I9100.

Steps for Flashing/Installing Chameleon OS Android 4.2.2 Jelly Bean ROM on Samsung Galaxy S2 GT-I9100

In this tutorial how to update Samsung Galaxy S2 GT-I9100 to Android 4.2.2 Jelly Bean using Chameleon OS (ChaOS) custom firmwareStep 1

Firstly, download a ChaOS Galaxy S2 GT-I9100.zip file to your computer.

Step 2

Now, connect your Samsung Galaxy S2 GT-I9100 smartphone to a computer and then copy the above downloaded file ChaOS Galaxy S2 GT-I9100.zip” in a folder named as “root” under your SD Card. Don’t run or try to open this file, just copy it in the folder.

Step 3

After transferring this file, switch off your phone to enter into the Recovery Mode. For this just press the Down Volume & Home button simultaneously, and while pressing these buttons press down your Power button at the same time.

Step 4

Since you are now in the Recovery Mode, select the “Wipe Data/Factory Reset” option to wipe off all of the data and after doing it, select “Wipe Cache Partition” option for wiping off all the caches from your phone memory.

Step 5

Now, move into the “Advanced” settings and there select the “Wipe Dalvik Cache” option to wipe out “Dalvik Cache” too from your phone.

Step 6

Next, select the install zip from SD card” option, and then select the choose zip from SD card” option to browse into your SD Card. Now, navigate up to the downloaded ChaOS Galaxy S2 GT-I9100.zip” file for flashing it on your phone.

Step 7

After installing ChaOS Galaxy S2 GT-I9100.zip on your Samsung Galaxy S2 GT-I9100, now install Gapps.zip file on your Android device. Since official Google apps are bundled only in official ROMs and not in custom ROMs (due to licensing issues), therefore after flashing a custom ROM on your Android device, you need to install GApps (Google Apps) separately particularly for your Android version only.

NOTE: GApps consists of various apps, such as GMail, Google Play Store, Google Search, Google Backup Transport, Gtalk, Google Calendar, Google Map, Car Home, YouTube, Google Music, Google Sync, Google Docs, and Google Voice, etc.

Step 8

Now get yourself back to the main menu by pressing back button and then reboot your Android phone.

Step 9

After this, you’ll have Chameleon OS ROM installed over your Samsung Galaxy S2 GT-I9100 providing you an Android 4.2.2 Jelly Bean environment.

Step 10

However, if you ever need to restore your old ROM just select the “Backup and Restore” option to recover back your previous ROM.

Finished!

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Prashant Sharma
Prashant Sharma is a Delhi based Entrepreneur who spent most of his college days polishing his marketing skills and went for his first business venture at 19. Having tasted failure in his entrepreneurial debut, he turned a Tech-enthusiast, specializing in web technologies later. Today, he heads Accu-rate Media, a Digital Marketing and Publishing firm and writes at AndroidNectar as well. Join him on Google Plus

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