If you have a custom ROM on your Nexus 7, or you want to send the tablet to Asus or Google for repair, you need to revert to the Factory Stock ROM.
Flashing the Stock ROM is easy, but you need some softwares and some files for it. Here is our tutorial for flashing the stock Rom on your Nexus 7.
Disclaimer: Take a backup of all your data before proceeding. AndroidPure and the Author are not responsible for any data loss or damage that may incur.
If you want to install 4.2.2, you still have to download the 4.1.2. Make sure you choose the versions properly. i.e nakasi for Wifi only or nakasig for 3G models
Now that we have everything ready, let us start.
Running the Toolkit
1. Run the Toolkit on your computer. Make sure you run it with administrator rights.
2. Skip the update check by typing NO and press enter.
3. Now Select option 4 by typing 4 and press the Enter Key.
Again, choose the appropriate option depending on your device’s model and OS. If your Nexus 7 is a wifi model and it is running on 4.2.2 you can select option 4.
Plug in the usb cable on your computer’s port and connect the Nexus 7 to it. If you have the drivers installed, you should see the serial number on the next screen. If you don’t see it, unplug the tablet from the computer, and type 1 to install the drivers for whatever version of Windows you have.
Connect the tablet back to the PC and proceed.
Flashing the Stock Image:
Type 9 and press enter to go to the Flash the Stock Image screen.
Type yes if your device is in fast boot mode or no to reboot it into fast boot.
If for some reason you cannot boot it into Fast boot, try this:
- Turn off the tablet and turn it back on by using the key combo: Power + Volume Up +Volume Down.
- You can choose to download the stock image or if you already have it, type 2 and press enter.
- Put the tgz file in the “put_google_factory_image_here” folder at C:\Google Nexus 7ToolKit\put_google_factory_image_here
While in fast mode, press yes to start flashing the factory ROM. It will ask you whether you want to format user data. Choose yes if you want to delete the data.
Now sit back and relax as the Toolkit erases the data and starts flashing the factory image on your Nexus 7.
The Tablet will reboot and you can start using it after logging in. It will automatically download the 4.2.2 update and prompt you to install it.You can choose to install it later, but sadly there is no way to prevent the annoying notification pop up.
If you are sending the tablet in for repair, run the toolkit again and relock the bootloader.
The Tablet will lose its Rooted status, however you can re-Root it easily. Follow this post to do so.