For major fixes, such as resolving audio quality issues or system lag, a manual flash using a USB drive is recommended:
Resolved UI flickering that occurred on some high-definition themes. zq8003 android update fixed extra quality
Optimizes software for smoother operation, specifically targeting lags in ZLink (CarPlay/Android Auto) and general interface navigation. For major fixes, such as resolving audio quality
Resolving "flat" sound profiles by enabling proper equalization. For major fixes