You can force the run on device like this
cordova run android --device
If you get an error message like “No devices found” then make sure that you have developer mode and USB Debugging enabled on the device and also run
adb kill-server and then adb devices should list your device and cordova run android --device should work
For iOS you can run from macOS
cordova run ios --device
If it doesn’t work, make sure you have ios-sim and ios-deploy installed and that you have your development certificate and a wildcard provisioning profile on your machine.
You can open the .xcworkspace file on /platforms/ios/ and Xcode will help you to create the certificates and provisioning profiles when you try to run the app.