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Install AOKP JB-MR1 Build 6 for the Samsung Galaxy S2 I9100G (Android 4.2.2 Jelly Bean Custom ROM)

AOKP JB-MR1 reached Build number 6, which brings tweaks and other improvements for your Galaxy S2 I9100G device. Installing this custom ROM isn’t that hard and you can complete the tutorial at your first attempt if you carefully follow all the instructions.

It is a custom ROM created by the Android Open Kang Project team, and it is one of the most popular releases for Android smartphones along with CyanogenMod and ParanoidAndroid custom ROMs. Make sure to test all its customization functions after the install is complete.

This Build #6 of AOKP ROM is based on Android 4.2.2 Jelly Bean and it brings the following new improvements: fully revamped navbar, lockscreen user interface in ROMControl section, scrollable toggles, lockscreen theme supported, open source Superuser, StatusBar hide toggle, Sleep toggle and many other small tweaks.

Read the guidelines below before getting to the tutorial:

  • Use this post only for the Samsung Galaxy S2 model number I9100G. Don’t attempt to flash this custom ROM on any other device nor on the I9100 version of Galaxy S2.
  • The device that you’re about to update should be rooted and running a custom ROM recovery, such as TWRP or CWM. We’ve used the ClockworkMod Recovery for this installation but, in case you use TWRP, then you should know that the guide is very similar and you will figure it out easily.
  • Use the custom Recovery mode to create a NANDROID backup of the currently installed SGS2 I9100G ROM. This will act as a restore point for your device and you can use it if you don’t like the new AOKP JB-MR1 build or your device is unable to boot with the new OS.
  • In the tutorial guide you will find a step that will tell you to ‘factory reset’ the phone. Make sure that you won’t skip unless you’re running a previous AOKP JB Android 4.2 ROM. The contents of the /system partition will be wiped, while the other parts of your device will be left unchanged.
  • Factory reset will delete installed apps, SMS, Call Logs and other similar data. You can choose to use some of these tools to backup such data: SMS backup & restore | Call Logs backup & restore | APN Settings Backup & Restore. Root access has to be granted for some of these apps.
  • Make sure to Sync your saved Contacts with your Gmail account. A guide on how to do that can be found here.
  • Make sure that your phone’s battery is charged so that it won’t power off in the middle of the updating process.
  • We cannot be blamed in case you damage your device nor in case you lose any data files. This guide is for advanced Android users only.
  • If you cannot complete the install then you can ask for extra help in comments.

Now that you know all of the above, I think that you can continue to the next part of this post and learn how to successfully flash the new custom ROM for your device.

How to flash AOKP JB MR1 Android 4.2.2 for the Samsung Galaxy S2 I9100G:

  1. Download the custom ROM from HERE. Save the file on your PC and don’t unzip the contents.
  2. Download Gapps for Android 4.2.2 ROMs from HERE. Don’t extract its zip contents and save it on your PC.
  3. Connect the phone to your computer. Then, move both files on your device’s internal SDcard. Disconnect the phone from PC when the files have been successfully copied.
  4. Power off your smartphone now.
  5. Boot it into CWM Recovery mode by pressing and holding at the same time Volume Up, Home and Power buttons. Release the buttons when the custom Recovery menu appears.
  6. Select ‘backup and restore’ option and create a NANDROID backup of the ROM that is currently running on your Galaxy S2. When done, return to the main menu of Recovery Mode.
  7. Select ‘wipe data/ factory reset’ and confirm. NOTE: if your device is running on a previous build of AOKP Jelly Bean 4.2 then you can skip this step.
  8. Select ‘install zip from sdcard’ and then ‘choose zip from Sdcard’. Find the AOKP JB MR 1 Build 6 zip and confirm that you want to install it.
  9. After the ROM is installed you should select ‘choose zip from Sdcard’ again. Install the Gapps zip.
  10. When both files have been successfully flashed you can return to the main CWM Recovery screen. Select ‘reboot system now’.
  11. The first boot process of AOKP JB MR 1 Build 6 ROM starts now and it shouldn’t take more than 5 minutes to complete.
  12. Enter your Google account details when the welcoming screen appears.
  13. Test all the AOKP Jelly Bean 4.2.2 features and customize the entire UI of your phone in any way you like.

If the first boot process takes too long to complete, then you should power off the device completely. After that you need to repeat the entire tutorial once again and, this time make sure to apply step 7 ‘factory reset’ actions, as that might be the cause of the failed updating attempt.

In case you don’t like this new ROM or you cannot install it, then you can use CWM Recovery and restore your device to its previous ROM using the NANDROID backup file created at step 6. If you have any other questions, post them below in comments.