You will want to root the BLU Vivo Air LTE device if you want to install the Titanium Backup application and remove the BLU stock apps. Moreover, you want to root the Vivo Air handset if you want to try Xposed or the Greenify application. Apps are without question one of the main reasons to root a device, but there are other reasons too.

The KingRoot application is a one click rooting method to open the system internals or your device and it is known as more of a soft root because it doesn’t require the bootloader on your device to be unlocked. You will need to unlock the bootloader if you want to install a custom recovery after you finish this guide. Combining a custom recovery with root access is where you get most of your benefits outside of the applications. For example, combining root and a custom recovery means you can start taking complete backups with the NANDroid Backup button and then install the NANDroid Manager app to restore partitions at a time. Others like to install a custom ROM or even a custom kernel on a device.

BLU Vivo Air LTE

These are the guidelines to root the BLU Vivo Air LTE device running on the Android 5.1 Lollipop software update:

Files You Need

  1. Download the MediaTek root tools from here.
  2. Download the Google USB Driver from here.
  3. Note that you are choosing to void the BLU warranty when you are using this guide to root the Vivo Air LTE device.

Rooting the BLU Vivo Air LTE

  1. Unlock the Developer Options menu by tapping on the Menu > Settings > About Device > Tap the Build Number with your finger 7 times and it will say you are using the BLU device as a developer.
  2. Enable the USB Debugging Mode from the BLU Vivo Air’s Developer Options by pointing to the Menu > Settings > Developer Options > USB Debugging Mode.
  3. Install the Google USB Driver on your computer by extracting the file to the desktop and then running the driver.
  4. From the MediaTek root tools file, download the PDA network drivers.
  5. Also from the MediaTek root tool page, download the Graphical Auto root tool.
  6. Install the PDA Net on your computer and follow the on-screen instructions and agree to them. When you get to the ADB option, click the skip button.
  7. Connect the BLU Vivo Air LTE smartphone to the computer with the USB cable.
  8. Extract the rooting tool to the desktop and run the executable file (.exe file) and the rooting program will open.
  9. Follow the on-screen commands until you are done. You should see a large button in Chinese writing that you need to click.
  10. The rooting tool should show you the progress bar; when it reaches 100% it will automatically reboot to the stock recovery mode. You can boot it back to normal mode after that happens and you should find the KingUser available from your app drawer.
  11. Reboot the BLU device before you start trying to install your root-requiring apps from the Google Play Store.

Update: rooting the BLU Vivo Air LTE device in this guide is not done by the KingRoot tool, but by a similar tool which does result in the KingUser being installed on your device. It’s essentially doing the same thing as you would expect from the KingRoot tool, but it’s created by independent Chinese developers.

In conclusion, that’s how to root the BLU Vivo Air LTE device using the one click rooting tool from your computer. You should be able to remove the Kinguser app the same way you would remove it from KingRoot. When you remove the KingUser your device will no longer be rooted.