Install Android 4.2.2 Jelly Bean via SlimBean Build 7 ROM on Galaxy S2 I9100 and I9100G [Tutorial]
Install Android 4.2.2 Jelly Bean via SlimBean Build 7 ROM on Galaxy S2 I9100 and I9100G

SlimBean ROM offers hand-picked Android features from popular custom ROMs such as CyanogenMod 10.1 (CM10.1), AOKP and ParanoidAndroid. The latest Build 7 ROM from the SlimROMs team offers a host of new bug-fixes and feature enhancements, including Master Key exploit patches with additional security fixes, Gapps update for Google Music and Google Play Services, enhanced support for secure Google voice messaging, new storage settings to enable users to trigger a volume rescan, a native Google backup system for profile backups, updated translations and changes to phone blacklist.

Here is the complete list of key features ported into the latest SlimBean Build 7 ROM for Galaxy S2 I9100 and I9100G:

Android 4.2.2 SlimBean Build 7 ROM Features

    • Privacy Guard
    • QS and notifications to navrings
    • SMS Middleware layer
    • Privacy GuardManager (Settings > Security > Privacy Guard)
    • Make Contacts apps aware of blacklisting being disabled
    • Option for subtle vibration notification during calls
    • Removed all init.d scripts
    • Translations updates
    • Added support for m7att and m7tmo

Check the official developer source page for more about device specific bug-fixes and feature updates

Note: Instructions provided in this guide are meant for reference purposes only. IBTimes UK reminds readers it will not be held liable if device is damaged or bricked during or after firmware installation. Users are advised to proceed at their own risk.


    • The SlimBean Build 7 ROM and these instructions are for the Galaxy S2 GT-I9100 and GT-I9100G models only. Verify device model number by navigating to Settings > About Phone
    • Back-up data and settings using a recommended custom recovery tool such as ClockworkMod (CWM) or TWRP
    • Ensure USB debugging mode is enabled on phone by navigating to Settings > Developer Options (if device is running Android 4.0 or later) or Settings > Applications > Development (if device is running Android 2.3 or earlier). If device is running Android 4.2, perform the following steps:
        • Go to Settings > About Phone
        • Scroll to bottom of screen and select Build Number
        • Tap phone's Build Number seven times to unlock or reveal hidden developer options under Settings. Then select checkbox to enable USB debugging mode under Settings > Developer Options
    • Ensure phone has at least 80% battery charge to prevent unexpected device shutdown (due to battery drain) while installing ROM
    • Ensure device is unlocked (not locked to specific carrier) and rooted with ClockworkMod Recovery (CWM) installed
    • If device is stuck at booting or experiences boot loop issues, Wipe Cache Partition and Wipe Dalvik Cache a few more times before rebooting
    • Allow newly installed ROM to stabilise for five minutes before using device
    • If a Status 7 error message flashes while installing firmware, it could be due to an incompatible device or absence of a necessary kernel (for instance, a Jelly Bean Kernel must be installed before installing any Jelly Bean ROM)


IBTimes UK brings you a step-by-step guide to install Android 4.2.2 Jelly Bean-based SlimBean Build 7 ROM on Galaxy S2 GT-I9100 and GT-I9100G (courtesy XDA Developers)

How to Install Android 4.2.2 Jelly Bean Update on Galaxy S2 GT-I9100 and GT-I9100G via SlimBean Build 7 ROM

    • Connect and mount phone's storage or SD card on computer via USB cable
    • Without extracting, copy downloaded ROM and Google Apps zip files to root folder on phone's SD card
    • Once file transfer process is complete, disconnect USB cable from computer and Power off phone
    • Boot device into recovery mode by pressing and holding Volume Up, Home and Power buttons. Wait until screen flashes and release all three
    • Take Nandroid backup of current ROM so it can be restored if new ROM fails to work or you want to return to original ROM. To do a backup, choose Backup and Restore and then click Backup on next screen. Return to main recovery menu once backup is complete
    • Perform a full data wipe task as follows: choose Wipe Data/Factory Reset and then click Yes on next screen to confirm. Wait for a few minutes until data wipe process completes. Return to CWM recovery main menu and click Wipe Cache Partition. Wait until wiping process completes. Choose Wipe Dalvik Cache under Advance options.
    • Select Install zip from SD card and then click Choose zip from SD card. Browse to Slim Bean Build 6 ROM ZIP file copied to phone in Step 2 and select by tapping Power. Confirm ROM installation by choosing Yes on next screen and installation will begin
    • Once ROM is installed, repeat Step 7. This time choose Gapps zip file to install Google apps
    • Once Google Apps is also installed, return to main recovery menu and tap reboot system now to reboot into newly installed Slim Bean Build 7 ROM. The first boot may take time

Returning to Previous ROM: To restore previous ROM, boot into recovery, choose Backup and Restore and restore original ROM by selecting from list

The Galaxy S2 GT-I9100 or GT-I9100G is now successfully updated to Android 4.2.2 Slim Bean Build 7 ROM. Go to Settings > About Phone to verify firmware version installed.