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Solution to V-A-G CAN PRO "Error opening communication with ECU"

How-to-solve:vag can pro "Error opening communication with ECU"
vag can pro clone error description: Today I received china clone vag can pro. I can connect to 01- engine without problems, but connection to others units isn't possible. I got a message after trying to connect: Error opening communication with ECU.
vag-can-pro-error-opening-communication-with-ecu-01  vag-can-pro-error-opening-communication-with-ecu-03 vag-can-pro-error-opening-communication-with-ecu-04
in my case of vag can pro clone i have problem with bad soldering... i did check all the soldering and fix what it seems to be bad or poor soldering. After this i have no problem connecting to all of controlers on my car.
here are pictures of my VCP clone... at this point all works:
vag-can-pro-error-opening-communication-with-ecu-05 vag-can-pro-error-opening-communication-with-ecu-06 vag-can-pro-error-opening-communication-with-ecu-07 vag-can-pro-error-opening-communication-with-ecu-08
ok, I see what's wrong, pin 1 to 3 on my board are not soldered and pin 9 to 13 on the other side are not soldered, I'll get VCP to work and let you know how I got on, cheers.
Good luck.