I found that my LG FH2 speaker uses the A2DP profile protocol:
… while my Android phone can not connect to it because it has a different profile, AVRCP:
Please note that I am not trying to turn my phone into an audio sink, only the audio gateway suits me perfectly.
How can I install, push, hack or load sideways via ADB A2DP Bluetooth profile to be able to connect my mobile to my speaker?
Edit: This is a global version of Redmi Note 5 (model M1803E7SH Latin America)