Last Updated on August 13, 2022 by Mathew Diekhake

If you are the owner of a Samsung Galaxy S2 I9100 and are hanging out for a little bit of Android 4.1.1 Jelly Bean love then we have good news. Thanks to a talented little developer over at XDA Developers by the name of Bajee11, there is now a way to get it with Vanilla RootBOX ROM.  The official update doesn’t seem to be too far away, but why wait? Installing the custom Vanilla Boot ROM will not only give you the Android Jelly Bean experience but with the feature called AROMA Installer, you can customize it to suit your personal needs. Get your hands on the oh-so-sweet Android Jelly Bean by following the guide below.

Before you begin please ensure:

  • You have a Samsung Galaxy S2 GT-I9100. The guide is ONLY for this particular device.
  • You Galaxy S2 I9100 is rooted and you have ClockworkMod Recovery installed.
  • Your device has at least 50% battery life.
  • You back up your personal data.

Install Android 4.1.1 On Galaxy S2 I9100 With Vanilla RootBOX ROM

Step 1. First you will need to download the following file:

RootBOX_JB_V2.2.zip

Step 2. Once downloaded you will need to place it straight onto the internal SD card of your Galaxy S2 I9100 without unzipping it.

Step 3. Switch off your device then reboot it into Recovery Mode. To achieve this hold down the ‘Power’ + ‘Volume Up’ + ‘Home’ buttons together until you see the ClockworkMod Recovery screen.

Step 4. At this stage you need to make a NANDroid Backup. To achieve this go to ‘Settings’ > ‘Backup and Restore’ > ‘Backup’.

Step 5. Once your Backup has been made, from the main menu select ‘Factory reset/Wipe data’.

Step 6. Now you need to format your system. Head to ‘Settings’ > ‘Mounts and Storage’.

Step 7. From back in the main menu select ‘Install ZIP from SD card’ > ‘Choose ZIP from SD card’ and locate then select the ‘Vanilla RootBOX ROM ZIP’ (the one you placed on your device’s internal SD card in step 2).

Step 8. The AROMA Installer should pop up and present a set of instructions to help you customize the ROM. Follow these carefully. Once complete head back to the main menu, do NOT select ‘Reboot Device’.

Step 9. You will need to select and confirm‘Wipe cache partition’.

Step 10. Followed by ‘Advanced’ > ‘Wipe Dalvik cache’.

Step 11. Only when this is done is it safe to select ‘Reboot System Now’.