Diawi is a tool for developers to deploy Development and In-house applications directly to the devices.
Basically, after a new Android build is released, we will send you a Diawi link for testing purpose.
You can go to that link on the browser on your Android devices (Chrome is preferred).
Select on Install application. You might need to update file permission, so you can download APK file to your device.
After update permission for downloading files, there will be a prompt to download the APK file.
Select OK to download.
The download process will start, and once it is finished, there will be notification to indicate this. Select Open to start the installation process.
After the installation process, you can use the new app on home screen.