How to Install AOSP Based Android 4.1 Jelly Bean on Google Nexus 7 [GUIDE]
Once again Google Nexus 7 gets a shot-in-the-arm, thanks to AOSP based Custom ROM that brings stock Android 4.1 Jelly Bean update to the table.

A number of Android devices is being swamped with Jelly Bean updates, and Google Nexus 7 appears to be the frontrunner, thanks to its overwhelming popularity with the Android developer community.

Once again Google Nexus 7 gets a shot in the arm, thanks to AOSP based Custom ROM that brings stock Android 4.1 Jelly Bean update. AOSP ROM, better known as Liquid ROM, introduces more customisation options flicked directly out of CyanogenMod. It is expected to deliver liquid smooth performance for the tablet.

Liquid Jelly Bean ROM ports the following key features onboard:

  • Highly responsive, lightweight and resource friendly User Interface (UI)
  • Adds five Lockscreen targets
  • Centre clock mod/customizable Colour
  • Customisable battery icons
  • Notification Bar Toggles
  • Notification Count in Status Bar
  • Backup/Restore option to reflash and restore your personal UI/ROM customisations

Key Points to Note

  • It must be noted that the ROM and the instructions provided in the guide are limited to Google Nexus 7 tablet and will not work with other devices.
  • The instructions provided in this guide are meant for reference purposes only.
  • IBTimes UK advises its readers to backup important personal data (bookmarks, contacts, SMS and internet settings such as APNs) to avoid risk of data loss while installing the custom ROM update for Android 4.1 Jelly Bean.

Here is a step-by-step guide to install Liquid Jelly Bean ROM based on AOSP for Google Nexus 7 [Courtesy: The Android Soul]:

How to Install AOSP Based Android 4.1 Jelly Bean on Google Nexus 7

Step 1: Before installing the AOSP custom ROM, you need to unlock the bootloader on your Nexus 7 by using the Nexus Root Toolkit (Download here). It must be noted that this step will wipe all the data on the tablet including the files on the SD card. So, it is imperative to take a backup.

Step 2: Install ClockworkMod (CWM) recovery on the tablet by following the guide posted here. Install the touch version of recovery as it is more convenient to use.

Step 3: Download the latest version of the AOSP custom ROM from the official development page.

Step 4: Copy the zip file downloaded in step 3 to the root folder of the SD card on the tablet (do not extract the files).

Step 5: Now, boot into recovery by performing a button sequence. Power off the tablet. Then, press and hold the Volume Up + Volume Down + Power buttons together until the device boots into CWM recovery.

Step 6: Take a Nandroid Backup of your existing ROM. So that you can revert back or restore your older ROM, if something goes wrong with this ROM. To perform a backup, select Backup and Restore; on the next screen, choose Backup again. Return to main recovery menu once backup is done.

Step 7: Tap wipe data/factory reset, then choose Yes to confirm on the next screen. Wait until the data wipe completes.

Step 8: Select install zip from sdcard, then tap choose zip from sdcard. Locate the ROM file on the SD card and select it. Confirm installation by selecting Yes - Install on the next screen. The ROM should begin installing showing the progress bar.

Step 9: Once the installation completes, return to the main recovery menu and hit reboot system now to reboot the tablet into Liquid Jelly Bean ROM. The first boot usually consumes time and it may take up to 5 minutes.

Step 10: In case you want to return to your previous ROM, boot into recovery (as given in step 5), choose backup and restore. Then restore your previous ROM by selecting it from the list.

This completes the installation process for Liquid Jelly Bean on your Nexus 7. You can now enjoy the goodness of Liquid jelly Bean with butter smooth performance and improved customisation capability.