If a "No File" message appears when attempting to update the firmware, it usually means your MPX8 already has the latest firmware installed and does not require an update.
Please check through the instructions below, and if the "No File" message continues to appear, you can confirm that the latest firmware is already installed by playing back a stereo audio file converted using the MPX8 File Conversion Utility.
Stereo audio file playback is only supported in the latest firmware version.
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