series may cause errors if installed on different hardware versions. Download Files: Locate the firmware file, which typically uses the Official drivers and manual links are sometimes hosted on TheHiFiCat or provided through the brand's official store on TaoBao. Prepare SD Card: Copy the firmware file directly to the root directory of a Micro SD card (do not put it inside a folder). Initiate Update: Insert the SD card into the FA4. Navigate to System Settings System Update (or a similarly named update option). The device will reboot and begin the installation. Language Check:
Place the firmware file in the root directory of your Micro SD card. faudio fa4 firmware upd