Q4: My tv box, I see them correctly, the sound of the HD channels is not heard😭.Q3: Why does my tv box has sound but no tv picture or do some channels have a tv picture, but no sound?.Q2: Can I Update the box from 264 to 265?.Q1: Do you have a universal upgrade firmware for my tv box?.Some upgrade firmware for DVB-T or DVB-T2 Digital TV Box.
