Last Updated on July 19, 2022 by Mathew Diekhake

There are a thousands reasons why you should root the Kindle Fire HDX 7 device. One of those reasons we recommend is to install the Battery Calibration app. if you want to keep your battery working the same way it was when you first opened the Kindle Fire HDX out of the box, you should install the Battery Calibration app.

As our Android devices age, the calibration of our batteries can get out of whack, which is why this app can help. There are other ways to enhance the battery of your Amazon Kindle device too, such as using the Greenify app. However, the Greenify app works by fixing your problems with apps and other programs you have installed on the device to get it optimized. It won’t calibrate your device.

Kindle Fire HDX 7

Files You Need

  1. Download the Towelroot application from its home here: http://towelroot.com.
  2. Make sure you have the Unknown Sources option enabled on your Kindle Fire HDX 7 device. You can check that by pointing to the Menu > Settings > Security > Unknown Sources.
  3. You are voiding the Amazon Kindle Fire HDX 7 by following this guide. You can unroot the Kindle Fire device by flashing a stock ROM on it later. You might find a toolkit available to help you with that.

Rooting the Amazon Kindle Fire HDX 7

  1. Open any web browser on your Kindle Fire such as Google Chrome and point to the Towelroot homepage you can see from the files you need above.
  2. Wait until the page loads and scroll down until you can see the red Lambda symbol.
  3. Tap over the red Lambda and wait for the Towelroot application to be installed on your device.
  4. Save the tr.apk file to your Kindle Fire HDX 7 tablet.
  5. Pull down the Kindle notification shade and tap the Download Complete option.
  6. Tap over the ‘Install‘ button when you see it on the display.
  7. Pull down the notification shade once again and tap the Installation Complete option and the app will open.
  8. Tap on the Make it Ra1n button and the Towelroot application will start rooting your device.
  9. Wait until you get the success message before doing anything else.
  10. Once you see that message, head directly to the Google Play Store and download the Superuser app.
  11. Open the Superuser app and check the box for the “declared permission’ option.
  12. Open the Google Play Store and download the root checker application. Open the root checker and follow the prompts to confirm your Kindle Fire device is rooted.

You might want to test out the Battery Calibration app to get things started.