The above steps definitely work. Unfortunately, it doesn't look like any DJI GO alternatives can be used. I installed Litchi and it fails to run.
Here are the exact steps I followed:
1) Download the Android SDK Platform-Tools from
here and unzip the contents into "C:\ADB".
2) Get the APK file for the app you'd like to install. If you don't have the APK file, install
Apk Extractor on your Android device to get it or download the APK from
uptodown.
3) Move the APK file into the "C:\ADB" folder.
4) Press the Windows+R keys to open the Windows Run window, enter "cmd", and press the "OK" button to open a Windows command prompt window.
5) Enter "C:\ADB\adb install -r Litchi.apk"
(without the quotes) in the command prompt window
(don't press enter to run the command).
Note: Replace "Litchi.apk" above with the name of the APK file you copied in step #3 above.
6) Turn off the remote controller if it's powered on.
7) Connect the remote controller to your computer via a micro USB cable.
8) Power on the remote controller and press enter in the command prompt window as soon as you hear the remote controller connect to your computer
(turn up your computer speakers). The remote controller should connect shortly after the DJI logo displays on the remote controller screen.
Note: If the APK is too large or you wait too long to start the install, you'll see the following message displayed:
Failure [INSTALL_FAILED_INSUFFICENT_STORAGE]
Note: If all works as expected, the command prompt window should show the APK being pushed to the remote controller and end with a "Success" message after the APK has been installed.
9) Click the gear icon at the top, left of the remote controller display and choose "All Applications" to view a list of your installed apps.
