Install CyanogenMod ( CM ) 10 ALPHA Android 4.1 Jelly Bean ROM on Google Nexus 7

Google Nexus 7 CM10 Alpha Update

Google Nexus 7 is a new tablet created by ASUS and Google and it has been launched several weeks ago. CyanogenMod 10 has also been announced and now it can be installed on your device. Use the instructions I’ve listed in this article and you will learn to install unofficial CM10 Alpha Jelly Bean ROM on your Nexus 7 tablet.

The CyanogenMod 10 has recently been presented and until now only unofficial and alpha releases were released for various Android devices. CM10 is based on AOSP Jelly Bean Android 4.1.1 release and you will get the Jelly Bean new services and functions. Most of these JB features are working since the device already comes as stock Jelly Bean and the tablet shouldn’t have any problems running the CM10 Alpha customized only. I think that all Android know what CyanogenMod is and that its developers are using the AOSP release by Google to create these working builds. It is based on Android 4.1.1 and for the moment this CM10 is in Alpha stage and it might have some errors.

In order to correctly install this CM10 preliminary build on your Nexus 7, you will first need to read the preparation guide and learn how to correctly flash all the ROM files. Here’s what you need to know:

  • Do not install this ALPHA CM10 on other devices. It works only with the Google Nexus 7 tablet.
  • Install it only on device that are rooted and running CWM Recovery. If your tablet isn’t rooted then you should use this ‘how to root Nexus 7 and install CWM Recovery guide‘ link.
  • Unlock the bootloader using the instructions I’ve listed in this post.
  • In the tutorial you will find a step that tells you to ‘wipe data/ factory reset’ and this means that you will have to move all important files on your device’s internal sdcard. The applications and other small files stored in the tablet’s system memory will be removed, except for the contents stored on the sdacrd. This step is mandatory because if you opt not to apply it, then you won’t be able to boot the CM10 alpha Jelly Bean ROM.
  • Use the following Android apps to backups applications and the APN Settings: AppBAK for Android apps backups | APN Settings Backup & Restore.
  • This guide is for advanced Android users. Do not blame us in case your device gets damaged during the installation. Make sure that you apply all the steps I’ve listed in the tutorial. If you cannot complete the guide, then let us know by posting in comments.
  • Enable USB debugging option on your tablet.
  • Charge its battery so that the device won’t power off during the CM10 Jelly Bean ALPHA ROM installation process.
  • It is recommended for you to create a full backup of your currently installed ROM. This will help you restore the working backup, just in case you simply don’t like the new CM10 alpha build Jelly Bean.

Now that you’ve read all of the above, you should move to the tutorial and make sure to apply all the actions I’ve listed in it. For those of you who don’t recognize some of the instructions, you should post in comments where you got stuck and we will help you get past that point. Remember that this is an unofficial release of CM10 and it is currently in its testing phase.

Update Google Nexus 7 to CM10 Alpha Android 4.1.1 Jelly Bean ROM:

  1. Download the ROM zip file HERE. Save the file and do not extract its contents.
  2. Download the Google Apps for Jelly Bean package HERE. Save this one also and don’t extract it. This file has to be flashed so that you will get Gmail, Google Now, Play Store and all other Google and Jelly Bean applications. You need to install Gapps so that you’ll gain full control over your device. Make sure to download the zip file for Jelly Bean.
  3. After the download of these zip files was completed, you should move them on your device’s SD card. Do not extract the contents. After the transfer is complete, disconnect the Nexus 7 from your PC. Power OFF the device and move to the next step.
  4. Boot your tablet into CWM Recovery. It can be done by pressing and holding ‘volume up’ + ‘volume down’ + ‘power’ buttons. Keep them pressed until the CWM Recovery mode is loaded.
  5. When in recovery mode, first thing that you should do is to create a full backup. It can be done by selecting ‘backup and restore’ and then select ‘backup’ and wait for the backup process to complete. In case you already created a full backup, then you should skip this step and move to the next one.
  6. Now select ‘wipe data/ factory reset’ option and confirm when you’re shown the next screen. Wait until all data is deleted and only then move to the next step. This process will delete only the applications, not the contents stored on the sdcard.
  7. Next ‘select install zip from sdcard’ and then, from the next menu, select ‘choose zip from sdcard’. Find the ROM zip file and confirm that you wish to install it.
  8. Repeat step 7 and install the GApps zip file the same way you did with the ROM.
  9. After the CM10 alpha ROM and the Gapps were installed you should return to the main recovery menu and select ‘reboot system now’.
  10. Wait now for the first boot in CM10 ROM to load your Jelly Bean home screen. Please note that this process will take a while and you should wait at least 5 minutes for it to complete.
  11. When the Jelly Bean CM10 home screen loads you should enter your Google account details and take control over your Nexus 7 device.

These were all the steps you had to take and now you should start testing the Jelly Bean release. I hope that you’ve managed to successfully flash all the files I’ve listed here and that from now on you know how to apply CM10 alpha. Test the Jelly Bean new features, especially Google Now and tell us how it works for you. If your device gets stuck at the boot logo or it gets into a boot loop, then you should re-apply all the steps I’ve listed in this guide.

The Google Nexus 7 is the first device that was released with Jelly Bean and all the stock feature will work with this CM10 Alpha build. If you find any errors, post them in our comments field. If you don’t like this ROM, then you should restore the backup you’ve created before starting the tutorial guide.

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