Update Galaxy S2 to Android 4.2.2 Jelly Bean RootBox v3.9.1


The latest stable release of well known custom ROM Vanilla RootBox is based on Android 4.2.2 and is now available for Galaxy S2 GT-i9100. Vanilla Rootbox offers a very light, fast and customized experience of latest 4.2.2 without any useless apps. It offers a very light installation with features from AOKP, CM10.1 and Paranoid Android. To update Galaxy S2 to Android 4.2.2 Jelly Bean RootBox v3.9.1, follow this very comprehensive tutorial.

Key features of Vanilla RootBox:

  • Per App DPI
  • Per App Tablet UI
  • Per App Language
  • OTA Updates – Goo Manager
  • Camera: Save to external memory
  • Phone: Advance Phone Settings (Vibrate on Answer, Every 45 Seconds, On Hangup and On Call Waiting)
  • Phone: Noise Suppression
  • MMS: Message rate alerts (Modify SMS message limit for alert)
  • MMS: Fully Customizable MMS Theme
  • MMS: Soft Keyboard Type (Emoji, Enter to Send, Enter for a New Line)
  • MMS: Emoji Support
  • MMS: Read, Delete, Reply and Call options in StatusBar for messages
  • Home button call answer (Accessibility Option)
  • Variable size pattern lockscreen
  • Clock: Increasing Alarm
  • Clock: Flip/Shake – Snooze or Dismiss
  • Clock: Disable Alarm Icon on Statusbar

Important: this guide is only for Samsung Galaxy S2 model number GT-i9100. Flashing it on other Android devices and models might create issues in your handset.

Prerequisites to root Vanilla RootBox Android 4.2.2 Jelly Bean on Samsung Galaxy S2 i9100:

  • Create a backup of all important data in your Galaxy device - learn to backup SMS & MMS.
  • Download and install USB drivers for Galaxy S2 in your computer.
  • Enable USB debugging option by pressing Menu > Settings > Applications. Navigate and tap on Developer Options to ensure that USB Debugging is enabled.
  • Make sure that ClockworkMod recovery is installed.
  • Ensure that your Samsung Galaxy S2 GT-i9100 carries more than 80% of charge.

How to update Galaxy S2 to Android 4.2.2 Jelly Bean RootBox v 3.9.1:

Required files: RootBox v3.9.1 ROM for Galaxy S2 I9100 and Google Apps.

  • Connect Galaxy S2 to your computer using data cable and copy the downloaded files to the SD card of your galaxy device.
  • Disconnect the cable and switch your SGS2 off. Boot in to recovery mode by pressing and holding Volume Up, Home and the Power buttons simultaneously - or try Quick Boot app. Use Volume keys to highlight and Power button to select.
  • Now perform a Nandroid backup of your existing ROM to be restored later. Select Backup and Restore Backup. Go to recovery menu after backup process is done. - very important step since it's a custom ROM and you might want to switch back.
  • Next we would perform a full data wipe operation by going to wipe data/factory reset Yes path. Come back to the main CMW recovery menu and select wipe cache partition, when done, tap on Advance wipe Dalvik Cache for wiping Dalvik cache data.
  • Now from sdcard, select install zip from sdcard followed by choose zip from sdcard. Locate the ROM file from sd Card and select it using power button. Tap on yes to confirm installation and wait for the ROM installation.
  • Once done, repeat the above step but this time choose gApps file (gapps-jb-20130301-signed.zip) instead of the ROM file.
  • When everything is done, go back to man recovery menu and select reboot system now. Wait for the device to boot in to the latest Vanilla RootBox based on Android 4.2.2 for Galaxy S2 i9100!