my DDCSV 2.1 did not update any firmware

r6mf49t2

Hello. How did you solve the DDCSV update problem? I have the same problem.
Is it necessary to connect to the serial port? What is the voltage and speed of the serial port?
Where to download 2016-02-09 installation package? DDCSV upload via serial port or usb drive? In zip frome facebook all files in folder "install(2016-02-09)", do I need to rename to "install"?

r6mf49t2

ytliu, damp from serial port: https://yadi.sk/i/wNwqOtDo3g8OOw
what's wrong?

r6mf49t2

ytliu Posted at 2018-10-4 07:17
This problem may be caused by the u disk problem or the oxidation of the gold finger surface of th ...

Thank you, the problem was solved by replacing the flash drive and installing it into the controller without an extension cord.