dtr- we have had some drivers here use the VTX8 in long electric A Mains with no issues. Yes, dust and dirt are always a concern, but the connections should be able to handle it under "normal" circumstances.

silvalis- did you re-bind the esc to the radio? After the update, and the setting changes, nothing? If its the same thing that happen before - were their any common items used (battery, receiver)? Even wires (if bad plug or connector). Worked with the VLink for several weeks before it was released and never found that type of problem.