Hi, I read in the manual addendum section that you can increase or decrease the internal sound by pressing the middle and bottom buttons, I did this and the sound decreased from 255 to and again up.It also says to reduce brightness, press top and middle buttons to reduce it from 40% to 0 and vice versa, But somehow this one is not working.I pressed both top and middle ones during session to reduce brightness but nothing happened while the volume method is working fine.Is there some mistake in manual? Also wanted to ask how this method relates to the normal method of using the knob at the top because when i lowered the internal sound to 0, the volume knob was not working any more.
Thanks
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