If you have installed the better drivers and the tuner is still failing, the issue is likely RF (Radio Frequency) or hardware revision.
Before diving into software, let's respect the hardware. The Inventec Mini DVB-T USB tuner (often found in laptops from brands like Acer, Lenovo, and Dell under various OEM codes like Inventec 760601 or SAA7131 ) is built on reliable chipsets. Typically, it uses the or Siano platform. drivers inventec mini dvbt usb tuner better