Install Android 4.2.2 LiquidSmooth ROM On I9300 Galaxy S3 – Ultimate Guide

We are delighted to inform you that you can now update your Samsung Galaxy S3 GT-I9300 to Android 4.2.2 Jelly Bean but using a custom ROM dubbed as LiquidSmooth ROM. This unofficial firmware is now available for download. Recently the dev team of this ROM released the RC1 version which is based on the latest Android 4.2.2 Jelly Bean ROM. Galaxy S3 I9300 is capable enough to run the latest Android 4.2.2 Jelly Bean smoothly, so we advise you try LiquidSmooth ROM if you looking for a way to upgrade your Galaxy S3 I9300 to latest Android 4.2.2 Jelly Bean firmware. Continue reading this article to know how to update your Galaxy S3 I9300 to Android 4.2.2 Jelly Bean based custom ROM LiquidSmooth ROM.

Note: This LiquidSmooth ROM (RC1) that based on Android 4.2.2 Jelly Bean, is still under development and may contain bugs and issues. All issues will be resolved as development progress.


LiquidSmooth ROM Key Features:

  • Google GCC 4.7 Toolchain
  • O3
  • Strict-Aliasing (Linaro)
  • C++11 Mode
  • Optimized String Handling Routines (Linaro/Sony)
  • Misc other Linaro and Code Aurora Optimaztions
  • Customizable lockscreen buttons and sliders
  • Chronus clock widget
  • Customizable hardware and software keys
  • Transparent navbar and status bar
  • Customizable navbar ring
  • Navigation bar widgets
  • Customizable power menu
  • Customizable quicksettings panel
  • Statusbar mods
  • Theme engine
  • Quiet hours
  • Volume rocker music controls
  • Full Rotation
  • Customizable battery and notification light


This tutorial is only for Galaxy S3, model number I9300. Don’t try this guide in any other Android device. Check your device’s model number in: Settings » About phone. Also, we are not responsible for any damage caused due to the instruction given in this page. Try this at your own risk. Although, it is very unlikely that your device will be damaged if you follow all the instructions as it is which are mentioned in procedure.

Pre Requisites:

Backup your data first using below mentioned instructions, so that if you lost any data you can recover it easily.

SMS & Call LogUse SMS, MMS & Call Log Entries Backup & Restore App
Contacts & SettingsUse Android default backup options.
Images, Songs, Videos, Files – Copy to Internal/External SD card.
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names
WhatsApp MessengerManually Backup WhatsApp Messenger Data.


  1. Make sure your device have at least 80% battery power, otherwise your device may see a hard brick if device turn off during installation. [How to Check Battery Percentage in Android Device]
  2. Backup your EFS Folder to save IMEI number and other important data. [Guide]
  3. You already have USB Driver Installed for Galaxy S3 in your PC. [Download USB Drivers]
  4. Make sure USB Debugging is enabled otherwise you won’t able to transfer file between PC and mobile. [Guide].
  5. Your device is rooted [Guide] and have ClockworkMod Recovery Installed [Guide].

If you done everything that we mentioned above then you are ready to move in the next page of this guide where we compile an easy to follow step-by-step guide on how to install Android 4.2.2 Jelly Bean based LiquidSmooth ROM custom firmware on Samsung Galaxy S3 I9300.

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  • Silvio Maia

    Hi, i want to know, if this rom have support to language Pt-Br for update it, because i install this rom in my i9300 but don’t have PT-BR to change display language. thanks

  • bruno

    j successfully installed jelly bean 4.2.2 but, when j reboot my phone, the keyboard always disconnect and j cannot enter any text.. Can you help me please ? (Back to 4.1.2 waiting for an answer..)

    • bruno

      sorry, it’s 4.2.1 j’m back to..

      • arafat21

        We are not sure what’s happening. You can use Carbon ROM Android 4.2.2 JB which have almost similar feature like this:

        • bruno

          thanks a lot, but, before doing a big mistake, is GT 19300 the same than i9300 ? This could be the answer…

        • bruno

          this one is just perfect, thanks !! B)

        • bruno

          ROM MANAGER propose an update (24 feb), is it a good idea to install it ? and should j proceed the same way j deed with this one ? (recovery mode…)

          • arafat21

            If you using ROM Manager then you only need to choose the ROM and the ROM manager should download it and installed using your custom Recovery. Technically you don’t require to do much.

          • bruno

            finally j’m back to the 4.2.1 paranoidandroid rom, too much bugs with CARBON 4.2.2. i-coyote bug, usb connection lost, play store connection impossible, etc..
            J’ll wait for a more advanced version.