On macOS
After downloading, open the ① "Downloads" folder, which appears at the right end of the Dock by default.
2.
Extract the file.
Then, click ②. Downloaded files will be shown.
①
3.
Copy the firmware update file to a microSD card.
Copy the "Q2N4K_FW.BIN" file to a microSD card.
Firmware update file
②
Copy the firmware update
file to a microSD card.
5