11. How to control the RETRO NANO in the FiiO Control App?

Here are the steps to control the RETRO NANO in FiiO Control App.
1. Please update the FiiO Control App to the latest version (Click the link to get the latest Android version: https://forum.fiio.com/note/showNoteContent.do?id=202105071628040377809&tid=17
2. Enter My devices->Tap the RETRO NANO to complete the connection. After a  successful connection, it will enter the Bluetooth control menu.
FiiO control works in both BT mode and USB decoding mode.