Datavideo SHOWCAST 100 4K Switcher with Built-In Streaming Encoder - Manual (Page 90)

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4. After double clicking the firmware file, you will see the loading prompt as shown below, indicating
that the file is being uploaded to the streaming encoder.
5. After the file has been successfully uploaded, you will see a file upload success message. Click the
Update button to start the firmware update process.
6. The device will reboot itself after it is updated successfully.
Note: If the device is recording or streaming, you must turn them off before initiating the firmware
update.