I am using original Ross-Tech VCDS HEX-USB adapter (Not the Chinese fake version) and I am unable to establish the communication.
The error on the bottom that I am getting is:
Failed to read test echo from FTDI device.
I have also attached the screenshot of the error along with the adapter model I am using.
Please help!!
http://s4wiki.com/wiki/Tuning#Flashing_utilitiesThe Nefmoto Free ECU Flashing Software and an eBay USB VAG KKL cable - The easiest and best supported method. Does not rely on boot mode, but will not flash bricked ECUs because bootmode support is not complete. You can also use (recent) VCDS (Ross-tech) cables with Nefmoto,
but you may have to disable "intelligent mode" in the VCDS setup dialog (intelligent mode causes the VCDS driver software to constantly poll the cable in the background, which may interfere with non VCDS apps). For more information, see the Nefmoto Flashing Guide.