This firmware is only for DX5 and is NOT applicable to DX5 Lite nor any other models. If this firmware is flashed to other models, it will immediately cause the product to be unusable and unable to repair by yourself. If the firmware of your DX5 is already V1.42, then your DX5 needn't this update.
The firmware version of your DX5 could be check at this tool.
What's updated:
1. Fixed the problem that PO+LO and PO output cannot adjust the volume in DAC mode
2. Added bandwidth adjustable options to improve SPDIF compatibility.
Firmware and tools for Windows: Download here (Firmware and tools for Windows: Download here (This update requires a Windows 10 or higher OS with driver installed. Drivers could be download here).
Firmware and tools for MAC: Download here
If you have questions about the update of your DX5, please contact us before updating this firmware.