A900 version V1.20 firmware update
1. Precaution
This firmware is intended for use with A900 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
When the unit is in standby, press the three buttons on the remote control shown below in sequence.
*The picture is only for reference.
3. Download
Windows/MacOS: Download here
4. How to update the firmware
1. Turn off the device with the power switch on the back.
2. Connect the device's FW port to a PC/Mac via a usb cable.
3. A removable drive will show up in the explorer on PC/Mac. Open the drive.
4. Copy the .Topping file to the root directory of the drive. The drive will then eject itself and reconnect.
5. 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.
6. Disconnect the USB cable from the FW port, then 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
• Fixed: Brief audible pop noise during factory reset when an input signal is present.
• Fixed: Resolved an issue where the left and right channel VU meter levels could occasionally swap on the FFT interface.
• Fixed: Resolved several other known issues.