Click here to download the TempoTec V3 firmware.

Change log:
1. change gain level from "High and Low" to "High, Middle and Low";
2. Add 4 more digital filters in firmware V1.0;
3. Add 4.4mm Line out Output;
4. USB DAC mode work with Mobile phone.
  How to set it on V3, turn on the following settings:
   System->USB working mode->Device
   System->USB device mode->Audio
   System->USB current limited->ON
5. Multi-layer file folders support
    Read tracks under multi-layer files completely.

Click here to download the Sonata BHD Pro firmware.

Please read the instruction first and pay much attention about the "IMPORTANT" tip before you flash the firmware.

_{Click here to download the TempoTec USB2.0 Audio Driver for Sonata BHD Pro Win7Win8}

_{Click here to download the TempoTec USB2.0 Audio Driver for Sonata BHD Pro Win10}

_{Click here to download the TempoTec USB2.0 Audio Driver for V6 Win7Win8}

_{Click here to download the TempoTec USB2.0 Audio Driver for V6 Win10}

Click here to download TempoTec M3 firmware.

Please read the instruction to update firmware.

_{Click here to download the TempoTec USB2.0 Audio Driver for M3 Win7Win8}

_{Click here to download the TempoTec USB2.0 Audio Driver for M3 Win10}

_{Click here to download the TempoTec USB2.0 Audio Driver for Serenade X Win7Win8}

_{Click here to download the TempoTec USB2.0 Audio Driver forSerenade X Win10}

<sub>Click here to download the TempoTec V6 Firmware V1.10.
Change log:
1. Add 192kHz support for Amazon music app.
2. add "on/off" switch for Play Store, HiByCast and CoolApk. Provide a choice for you to run or quit the APP as need. Save and reserve runtime memory for music process.
3. Update HiByMusic App to 2.06_V6057.
4. Fix L&R channels occasionally swapped problem while weaken from standby status.</sub>

_{Click here to download the TempoTec V6 User manual}

_{Click here to download the Sonata HD V Firmware}

_{Click here to download the Sonata HD III Firmware}

_{Click here to download the Sonata HD II Firmware}

_{Click here to download the Sonata HD V&Sonata HD III&Sonata E44&Sonata E35&Sonata BHD&Sonata HD PRO Windows USB2.0 Audio Driver}