1.) Download Docket for Android Download Docket
2.) Find the downloaded DOCKET_INSTALL.apk file. Select to open it and begin the installation.
3.) You’ll receive a warning at the bottom of the phone letting you know that you must give that app permission to install the file.
4.) Tap the Settings button to proceed.
5.) On the next page, you’ll be asked to allow the app to make APK installs. In our case, it’s the "Files by Google" app. Toggle on "Allow from this source".
6.) A prompt should pop up, giving you the option to Install the app. Go ahead and follow the instructions to install.
7.) Finished! You’ll find it in your app drawer.