Droidplanner voice error - data link lost

Continuing the discussion from Adding Telemetry to the Walkera QR X350 Pro:

The first thing I suggest you try is to make sure the radios are configured and connected properly and you should test this on your PC first remember that you should set the baud rate on the radios to 57600… Assuming that works then move onto your android device and if you still get errors then its probably an issue with the OTG cable. One more thing, you should also double check the connection preferences on droidplanner to be usb, and the baud rate matches what you set on your radios