The update optimizes the internal DAC (Digital-to-Analog Converter) paths. This eliminates the "hiss" at high volumes and provides a cleaner signal to your aftermarket amps or speakers.
This update will likely wipe your radio presets and Bluetooth pairings. Be prepared to re-configure your setup. zq8003 android update fixed extra quality
Plug the USB into the primary 4-pin or 6-pin port. Most units will auto-detect the update. If not, go to . ⚡ Post-Update: Activating the New Features zq8003 android update fixed extra quality
Before this update, the "Extra Quality" toggle in the factory settings often felt like a placebo. Users would enable it only to find no measurable difference in output. The new firmware patch changes the core processing logic of the motherboard. zq8003 android update fixed extra quality