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Update Google Nexus 7 with Android 4.2.2-based AOKP Jelly Bean MR1 Build 4 custom ROM

Google Nexus 7 tablet has received its own version of AOKP JB MR1 which is based on the Android 4.2.2 ROM. This is the 4th installment of this Milestone Release 1 and you can learn how to successfully flash this new ROM on your device. Make sure that you read the entire post and that you won’t skip any steps that are listed below.

MR1 comes from the Milestone Release term and it is a more stable variant of the AOKP Jelly Bean ROM. It is not a final release and that is why you might find errors and bugs while testing it. That’s why you should only install it if you’re a tinkerer and you like to test as many custom ROMs as possible. The developers state that this Build 4 release of the AOKP JB ROM is pretty stable and you shouldn’t find any major bugs while using it. Make sure that you create a NANDROID backup of your current ROM as otherwise you might lose all data and restore your device to stock Android 4.2 Jelly Bean OS.

There are many new features and improvements added to this ROM and you will find more info in this news article here. In order to make sure that you install this custom ROM at your first attempt, then you should follow the guidelines listed below. Make sure that you read all the info before moving to the tutorial guide:

  • This tutorial will work exclusively with the Google Nexus 7 tablet device. Don’t use the files that I’ve listed in this post with any other Android phone or tablet.
  • Your device has to be rooted and running a custom Recovery image. Use CWM or TWRP.
  • Use the custom Recovery mode to create a full NANDROID backup of your current ROM. This will create a restore point for your tablet and you will be able to use it in case the new AOKP JB MR1 build4 ROM is unable to boot.
  • Move all important data on to your computer or you can choose to copy them to your tablet’s internal sdcard.
  • Enable USB debugging option.
  • Make sure that the tablet’s battery is charged and its power level is over 50% as that will prevent it from powering off.
  • Use this guide only if you’re an advanced Android user. You shouldn’t attempt to update the tablet in case you don’t know what you’re doing.
  • We cannot be held responsible in case something goes wrong and you delete files accidentally or you brick the device. Read all the instructions I’ve listed and if you don’t understand some of them, then you should ask for more help in our comments field.
  • Don’t skip any steps that I have listed below.

These are all the preparation guidelines and now you can continue to the tutorial guide.

How to install AOKP JB MR1 Build 4 ROM for the Google Nexus 7:

  1. Download the custom ROM zip from HERE or HERE. Save the zip on your PC without extracting its contents.
  2. Download Gapps for CM 10.1 from HERE. This contains all the Google apps that are working with the Android 4.2.2 ROM. Don’t extract the contents of these files.
  3. Connect your computer to your PC and then move these files on its internal SDcard. Disconnect the smartphone from computer when the files are copied. Power off the device now.
  4. Boot it into CWM Recovery mode by pressing Volume Up, Volume Down and Power. Release the buttons when the Recovery mode menu appears.
  5. RECOMMENDED: Create a NANDROID backup of the current ROM. This will set a restore point for the tablet and you can use it in case the new ROM will fail to boot normally.
  6. Select ‘wipe data/ factory reset’ option and then you should confirm this process. NOTE: If your device is already running on an  AOKP Jelly Bean ROM then you can skip this step.
  7. Select ‘install zip from sdcard’ and then select ‘choose zip from sdcard’. Find the AOKP JB MR1 build 4 ROM and confirm that you want to install it.
  8. Select once again the ‘choose zip from sdcard’ and after that you should flash the Gapps file.
  9. When both files have been installed successfully, return to the main menu of the CWM Recovery mode.
  10. Select ‘reboot system now’.
  11. The first boot process of this new ROM shouldn’t take more than 5 minutes. Take control over your device using your Google Account.
  12. Test the new AOKP JB MR1 build 4 ROM and then tell us in comments which are its best new features.

These were all the steps that you had to take and now you should open all the new menus and test the features and functions that you can find. Customize the new ROM and set up the phone for your daily use.

Note that in case the first boot process is not completed, or the tablet enters a boot loop, then you should power off the device completely. After that you should repeat the entire tutorial, but this time you should make sure that you apply the actions listed under step 6. Custom ROM might have such random installation fails, which is why you should repeat the steps listed above.

If you have any other problems, then you can leave a detailed comment below and we will try to offer you solutions.

In case you don’t like how the new ROM works with your Nexus 7, then you should boot your tablet into CWM Recovery mode. After that you need to use the ‘backup and restore’ option and restore the backup file of your previous ROM. Your tablet will then be restored to its previous state and there will be no trace of AOKP JB MR1 build 4 ROM.

After installing a new Android 4.2.2 ROM, the Android USB debugging option might need to be re-enabled after the install is complete. However, in Android 4.2.x,  the Android Developer Options are hidden and you will be forced to open the Settings app. After that you will need to select ‘About phone’ menu and then scroll down  to the Build Number section. Tap 7 times on the Build Number text and the Developer Options will be re-enabled.

For any other questions use the comments section below.

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