Google Nexus 7
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Nexus 7 holds the record for being the first Google Nexus device to harness the potential of Android 4.1.2 Jelly Bean update through Google's official release. Following the official release, a number of custom ROM based Android 4.1.2 Jelly Bean updates have hit the market, although the AOKP version is still the hot favourite among Android fanatics.

Newly released AOKP build 5 brings a host of exciting features including custom NavBar for tablets, NavBar widgets borrowed from Ice Cream Sandwich (ICS), Menu UI Overflow Toggle, VPN Traffic statistics and more.

Key Points to Note

  • The AOKP ROM and the instructions given in this guide are compatible only with the Google Nexus 7 model and will not work on any other device. Verify your device's model number by navigating to Settings > About Tablet.
  • The ROM is not an official release, but a custom ROM based on AOSP release of Android 4.1 Jelly Bean.
  • IBTimes UK advises users to back up apps, important data and settings to avoid data loss while installing the Android 4.1.2 Jelly Bean update on your Nexus 7.
  • The instructions provided in this guide are meant for reference purpose only and do not cover any warranty claims involving device damage or issues arising out of using the AOKP Build 5 firmware update. Users are cautioned to proceed at their own risk.


  • Ensure that you have installed the correct USB drivers for your Nexus 7 tablet to enable connectivity with the computer. Download Nexus 7 USB drivers.
  • Enable USB debugging mode by navigating to Settings > Application > Development. This feature helps in connecting your Android phone with the computer.
  • Verify that your tablet's battery is at least 85 percent charged to prevent unexpected device shutdown while flashing the AOKP custom ROM or installing the Android 4.1.2 Jelly Bean update.
  • Ensure that your Nexus 7 tablet is factory unlocked. Also, verify that the device is rooted and Clockwork Mod (CWM) Recoveryinstalled on it.

How to Install AOKP Build 5 Based Android 4.1.2 Jelly Bean on Google Nexus 7

Step 1 - Download Android 4.1.2 AOKP Build 5 Jelly Bean ROM and Google Apps for Nexus 7 on your computer.

Step 2 - Connect and mount your Nexus 7 USB mass storage on your computer using an USB cable.

Step 3 - Copy the Android 4.1.2 ROM zip file to the root folder on your phone's SD card.

Step 4 - Power off your phone.

Step 5 - Press and hold the Volume Up, Volume Down and Power buttons together until the device powers on and boots into Bootloader mode.

Step 6 - Follow the onscreen navigational instructions. Select Bootloader and then progress into CWM Recovery.

Step 7 - In CWM recovery, perform a full data wipe first. Navigate to flash zip from SD card option and hit the Power button to select it.

Step 8 - Tap the Power button once again and click choose zip from SD card.

Step 9 - Navigate to theAndroid 4.1.2 ROM zip file that you copied to your phone in Step 3. Use volume keys to navigate to the file and select it using the power button. Double-tap on the ROM zip file to begin installation. Confirm the ROM installation on next screen and the installation procedure should begin.

Step 10 - Once the ROM is installed, hit Go Back and tap reboot system now in the recovery menu. The phone will reboot and the first boot may take about 5 minutes to complete. So, leave it alone.

AOKP Build 5 based Android 4.1.2 Jelly Bean update is now successfully installed on your tablet. Go to Settings > About Tablet to verify the firmware version installed.

[Source: Team Android]