Update Galaxy S2 I9100G to Android 4.2.2 using Vanilla RootBox ROM

The deal with a custom ROM is that it requires a tutorial to land on your device. Ours will let you know what requirements and steps to take so that your Galaxy S2 I9100G is updated to Android 4.2.2 via Vanilla RootBox ROM.

So don’t go anywhere. But just so you know: you may encounter some bugs after you follow our guide. They aren’t very dangerous, so no sweat.


Here are the pre-requisites: root your S2 I9100G and install CWM Recovery, get USB Drivers fit for this phone on the laptop you own, charge the battery, turn on USB Debugging, download and then GApps pack from here and make a full backup.

The steps to comply with for this tutorial are finally upon us.Galaxy-S2-I9100G


  1. Plug the S2 I9100G to the laptop.
  2. Copy the Android 4.2.2 Vanilla RootBox v3.8 ROM together with the Google Apps Pack from the comp to your phone’s memory card root; now power the S2 I9100G after you’ve unplugged it from your laptop.
  3. You will have to send the handset into ClockworkMod Recovery; now generate a full NANDroid backup of the ROM that’s on the smartphone using our guide. Go to the main recovery menu when you’re done and then perform a full data wipe.
  4. For step 4 you should return to the phone’s ClockworkMod Recovery after the previous task is over. The next action to perform: opt for Wipe Cache Partition.
  5. Choose Wipe Dalvik Cache and then search till you see Install zip from SD card; to opt for this, use Power, then select Choose zip from SD card via the same button as before.
  6. For step 6 you need to opt for the file that’s on the memory card root with Power.
  7. Wait for “Yes”and choose it as soon as it appears on the screen. Now install the Google Apps zip file by repeating the sixth step.
  8. [sc name=”banner-jos”]For step number 8 you will be asked to opt for Reboot system now when you are back in the recovery menu. Wait a bit now and the phone will feature the update after it reboots.

To check if everything went as planned, you have to go to the handset’s ”About phone” and search for the Vanilla RootBox custom ROM. But what can you do if you experience an issue? First: don’t panic. Second: follow the next tutorial.

Which starts with this: perform Wipe Cache Partition. Then continue it with performing Wipe Dalvik Cache. If, however, you just want to go back to your smartphone’s initial ROM, do these actions: restart the device into Recovery mode, opt for Backup&Restore and select the ROM you want; there should be a list that features it among other options.