Upgrade Asus Nexus 7 Wi-Fi to CM10.1 RC4 Jelly Bean 4.2.2 Custom ROM

A tablet that can start being enjoyed in an updated version is Asus Nexus 7 Wi-Fi. The gadget will get to see what Android 4.2.2 Jelly Bean means in terms of features and so on via CM10.1 RC4 custom ROM from this tutorial.

Here’s to a more reliable, stable and overall improved device!

Requirements

What we expect from you to do from now on is this:

  • charge the handset’s battery to 100%;
  • flash USB drivers for your tablet on your notebook;
  • download, on your PC, (the file is labelled cm-10.1.0-RC4-grouper.zip) and after that Gapps archive (you must choose the latest version of the file, called gapps-jb-20130301-signed.zip);
  • make backups of the most important data (including the one on the internal memory, but back that up to an external SD card instead);
  • use the tablet model which comes carrier + bootloader unlocked;
  • turn on USB debugging.nexus-7

Instructions

  1. The first couple of actions you should be performing starting from now are these: plug the device to your laptop, then copy the two zip files from it and paste them both to your tablet’s SD card without unzipping anything along the way. After you notice the end of the copy and paste phase, you need to unplug the devices from one another.
  2. Once the Nexus 7 WiFi is off, you will have to boot it in Recovery Mode by booting the tablet into bootloader; go to the Recovery Mode afterwards via Volume buttons and opt for that mode with Power.
  3. If you haven’t done the NANDroid backup we’ve been referencing, you should do it now, then operate some simple tasks which will wipe the phone.
  4. You need to debut this part of the guide by choosing Factory Reset/Wipe Data and confirming the task by opting for “Yes”.
  5. When you have returned to the tablet’s Recovery Menu, you need to choose Wipe Cache Partition. End the wiping process by opting for Wipe Dalvik Cache.
  6. The part that comes next tells you to opt for Install zip from SD card. When you’re done, select Choose zip from SD card. Then find the CyanogenMod 10.1 .zip file. Upon finding that one, you have to opt for it with Power and also confirm its flashing.
  7. Wait for the firmware to be installed on your tablet. The Google Apps package will then need to be flashed on the same gadget. Do so by repeating everything from this part onward: “The part that comes next tells you to (…)”. The gapps-jb-20130301-signed.zip is now present on your Asus Nexus 7.
  8. Return to the Recovery Menu after both zip files are where they belong. Opt for the system restarting option; the tablet is going to reboot pretty soon. Then it is going to boot into the CM10.1 RC4; this will happen after you wait some minutes.

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NOTICE: The guide may come across some problems. So, if you notice a message saying “Status 7 error” is on the tablet’s display, you can erase it by installing a compatible kernel on the gadget before flashing the CM10.1 RC4. Another issue, that of your device getting blocked into an infinite boot loop, is solved like this: operate Wipe Cache Partition, Wipe Dalvik Cache and then reboot the tablet.

Choosing to have the old ROM back on the gadget is something understandable. If you want that, too, you have to first boot the Nexus 7 Wi-Fi into Recovery, opt for Backup&Restore, choose the firmware from a list and wait for it to come back on your tablet.

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