3.2 How to update the firmware when connecting R2X more than once after
installing the R2X Utility app.
3.2.1 When the R2X is powered on, it is automatically connected to the App and
it switches to the [Home] screen.
3.2.2 If the R2X needs a firmware update, it will go to the firmware update screen.
3.2.3 Firmware update starts when you click the [Start] button.
3.2.4 When the firmware update is complete, the [Firmware Update Complete] screen
automatically moves to the [Home] screen.
