To easily root any Rockchip RK3288 devices without PC just follow these steps:
1. Go to PlayStore search and install Root Checker, just to make sure that your device’s firmware is not pre-rooted. In that case go to step 5. Run the application and check.
2. Open a browser and search for ‘Towelroot’, then open https://towelroot.com website.
3. Press lambda symbol and download tr.apk on your device. If the downloaded file name is tr.txt, just rename it an change the extension to .apk. Make it sure you have checked that option in the Settings which allows to install third-party applications from unknown sources.
4. Install tr.apk, run it and the tap on “make it ra1n” button. The tool will install the required files on your device and make it rooted.
5. Go to Playstore and install SuperSu or Superuser application. Run it and update the binaries.
That’s it! Enjoy!