SlimBean stable ROM offers a fast, stable and lightweight Jelly Bean package for Galaxy S2 GT-I9100

A stable build of Android 4.3 SlimBean ROM is now available for Galaxy S2 GT-I9100, thanks to the industrious efforts of SlimROMs team. SlimBean Build 1 ROM is the first stable release of custom Android 4.3 firmware.

The SlimBean ROM is based on original Android Open Source Project (AOSP), which integrates top Jelly Bean features hand-picked from popular custom ROMs such as Android Open Kang Project (AOKP), ParanoidAndroid and CyanogenMod (CM) in a small and lightweight package.

NOTE: Instructions provided in this guide are meant for reference purpose only. IBTimes UK reminds its readers that it will not be held liable for any device damage during or after firmware installation. Users are advised to proceed at their own risk.

Head over to the official developer source page to learn more about the firmware features and latest bug-fixes.


    • The SlimBean stable ROM and instructions provided in this guide are meant for Galaxy S2 GT-I9100 model only. Do not attempt installing the firmware on any other model, as you might end up bricking the device.
    • Ensure the device is factory unlocked and rooted with ClockworkMod (CWM) recovery or TWRP installed on it.
    • Back up important data and settings on the phone via one of the custom recovery tools such as CWM or TWRP to prevent data loss during firmware installation.
    • Ensure the device has at least 80% battery charge to prevent unexpected device shutdown (due to battery drain) during firmware installation.
    • Enable USB Debugging mode by navigating to Settings > Developer Options (if phone is running Android 4.0 or later) or go to Settings > Applications > Development (if running Android 2.3 or earlier). If the device is running Android 4.2, then perform the following steps:
        • Go to Settings > About Phone
        • Scroll down to the bottom of the screen and select Build Number
        • Tap Build number seven times to unlock or reveal hidden Developer Options. Now, select the checkbox to enable USB Debugging mode under Settings > Developer Options.

How to Install Android 4.3 Based SlimBean Stable ROM on Galaxy S2 GT-I9100

    • Connect the phone to computer with original USB cable and copy the downloaded SlimBean Stable ROM and Google Apps zip files to the root folder on the phone's SD card.
    • Power off the phone and boot it into Recovery mode. To do so, press and hold Volume Up and Home buttons together and then simultaneously tap the Power button until the green robot icon with a triangle appears on the screen. This confirms entry into Recovery mode.
    • Before flashing the new ROM do the following steps in CWM recovery:
      > wipe data/factory reset
      > wipe cache
      > go to "advanced" and perform wipe dalvik cache
      > go to "mounts and storage" and format system
    • In CWM recovery, click Install Zip from SD card and select the ROM zip file copied earlier to the phone's SD card (repeat this step for installing Google Apps as well). After selecting the ROM file, allow the ROM to be installed on the device. This process may take about five minutes to complete.
    • After the device is updated, hit Reboot System Now to reboot the phone into the newly installed ROM.

SlimBean Stable ROM is now successfully installed on your Galaxy S2 GT-I9100. Go to Settings > About Phone to check the firmware version installed.

[Source: XDA Developers]