hello, got some problems with loudspeaker. When start to listen music, or other sound starts to play, speaker volume is very loud, but just after one second or less the volume drops by 50% and stays like that. When you stop playing and start again, sound playing silently, but sometimes volume is hig...

Hello. I bought brand new BV8000pro. I have problem with sound. When listening to music, or something else, sound is great, but for 1second or less, after that sound volume drops about half ( volume bar is full) this stuff happens with phone sounds ( allerts, tones etc) too. start melody is loud and...