I tried to change panel LED control setting to Power, headlights, power and headlights. There is just these 3 options. None of them works for me. Even tried to change the colour. Still not working. By away thank you again. You are So professional and helpful.You can update. Which android is better I do not know, everyone has a different opinion. Mainly look what kind of bluetooth module you have, you will find it in the factory settings. Bluetooth MD725 does not work on Android 10. The SD-968 Bluetooth module with firmware manufactured in March 2017 or earlier works in Android 8, but does not work in Android 9 and 10. The solution is to replace the module driver or replace the module. Try changing the backlight control of the buttons: Factory setting / Other / Panel LED control.