D900 version V1.20 firmware update
1. Precaution
This firmware is intended for use with D900 only and is not compatible with other models. Flashing this firmware onto a different model will render the product inoperable and irreparable. If your firmware version is already V1.20, there is no need for this upgrade.
2. How to check the firmware version
Press and hold the knob while powering up (powering up: i.e. switching the power switch on the rear panel to power on).
*The picture is only for reference.
3. Download
Windows/MacOS: Download here
4. How to update the firmware
1. Connect the power cable to the D900 and the power outlet.
2. Use a USB cable to connect the D900's USB-B port to the computer's USB port. (Firmware upgrades are only supported via the USB-B port; the USB-C port is not supported)
3. Turn off the device with the power switch on the back. Press and hold the knob, then power on with the power switch. The screen will show the current software version.
4. A removable drive will show up in the explorer on PC/Mac. Open the drive.
5. Copy the .Topping file to the root directory of the drive. The drive will then eject itself and reconnect.
6. Reopen the drive. A new file will be showing the current firmware version as "Update successful(Version.Vx.xx)" of which the "XX" is the new firmware version that indicates the firmware is successfully upgraded.
7. Turn off and on the device again. The upgrade is complete.
5. Problems may be encountered
If the computer does not recognize the unit, try using another USB port, another USB cable or even another computer.
6. What's updated
• Adjustment: Long-pressing the brightness button on the remote now clears the Bluetooth list instead of switching to the home screen
• Adjustment: C1 and C2 now save all system parameter configurations
• Adjustment: The 5 system preset PEQs can now be modified (parameters and names) or deleted via Tune
• Adjustment: EQ menu now shows both index and name instead of index only
• New: Added PEQ disable reminder when connected to the control software
• New: Option to retain PEQ settings when performing a factory reset
• New: In the FFT interface, volume adjustment, input/output switching will display large font info for 3 seconds before returning to the normal screen
• Fixed: Line out did not display sampling rate, only volume
• Fixed: 4V/5V switching not working properly
• Fixed: Several other known issues
7. Topping Tune
To use Topping Tune, please update to the latest version. Click here to download and install, or check for updates within the app.
