Flash CM 10.1 RC2 Jelly Bean 4.2.2 ROM for the Google Nexus 7 GSM

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GSM Nexus 7 tablet has received its own version of CM 10.1 Release Candidate 2 official ROM by the CyanogenROM team. It is based on Android 4.2.2 Jelly Bean and you can learn how to install all the files by reading all the instructions that I have listed below. In order to successfully flash this official build of CM 10.1 you need to read the guidelines below first:

  • use this tutorial only with the Google Nexus 7 GSM variant.
  • your tablet has to be on unlocked bootloader, rooted and running a custom Recovery image like TWRP or CWM. I’ve used the ClockworkMod Recovery for this guide.
  • create a full NANDROID backup of your current OS before installing the new ROM.
  • backup your most important data files before getting to the tutorial.
  • the tutorial will ask you to wipe data and factory reset the device. This means that the /system partition will be wiped, this is the part of your phone that contains the installed apps.
  • enable USB debugging option from the Developer Options menu.
  • make sure that there is enough power left in your tablet’s battery before installing the new ROM. The device shouldn’t power off in the middle of the updating process, that might brick its firmware.
  • this is a guide for advanced Android users. Don’t try to use this tutorial in case you’re a novice.
  • don’t skip any instructions that I have listed below.
  • if you cannot complete the updating process, then you should ask for extra help in comments.

These were all the extra instructions you had to read  before getting to the tutorial.

NOTE: In case your tablet Nexus 7 is already running on a previous build of CM 10.1, then you can skip the ‘factory reset’ action and flash the new build over. This is known as a ‘dirty flash’. However, in case the tablet doesn’t boot with the new OS, then you should repeat the entire tutorial once again and apply factory reset and install the new ROM after that.

How to install CM 10.1 RC2 Jelly Bean 4.2.2 on the Google Nexus 7 GSM:

  1. Download the CM 10.1.0 RC2 zip from HERE. Save the file on your PC and don’t extract its contents.
  2. Download Gapps for Android 4.2.2 ROMs from HERE. Don’t unzip, save the file on PC.
  3. Connect the tablet to your computer now via USB cable. Move both files onto the tablet’s internal SDcard. When the files are copied you need to disconnect the tablet from PC.
  4. Power off the Google Nexus 7 now.
  5. Boot the device into CWM Recovery mode. Press Volume Up, Volume Down and Power buttons all at the same time.
  6. Select ‘backup and restore’ option and create a NANDROID backup of your current OS.
  7. Select ‘wipe data/ factory reset’ and confirm this process. NOTE: if your tablet is already running on a previous build of CM10.1 then you can skip the factory reset.
  8. Select ‘install zip from sdcard’. Then, ‘choose zip from sdcard’ and find the CM 10.1.0 RC2 zip. Confirm its installation.
  9. When the ROM is installed, you need to select once again ‘choose zip from sdcard’. Find the Gapps zip and install it.
  10. After you complete installing both files, return to the first menu of custom Recovery mode.
  11. Select ‘reboot system now’.
  12. Wait several minutes for the first boot process of this new ROM to complete. Enter your Google Account details and take control over your brand new CyanogenMod 10.1 OS.
  13. Test all the new feature and don’t forget to create your own personal User/ Profile for your tablet.

These were all the steps that you had to take in order to successfully flash the new official build of CM 10.1 Release Candidate 2.

In case the first boot process takes too long to complete, then you will have to switch off the Nexus 7 completely, after that you should repeat the entire tutorial once again. Make sure that the second time you apply the ‘factory reset’ action. If you have any other questions or you cannot complete the install, please leave a post in comments section. Post a detailed comment describing the steps you took and where you got stuck while trying to install the CM 10.1 RC2 on your Nexus 7.

Google Nexus 7 Articles

  • Gage

    3. …..you need to disconnect the tablet from PC
    6. Select ‘backup and restore’ option and create a NANDROID backup of your current OS.
    7. Select ‘wipe data/ factory reset’ and confirm this process.
    Hmm just a thought but won’t this delete the nandroid backup?

    • Guest

      No. This will not delete your nandroid backup.