How to Solve Yanhua Mini ACDP got “open serial port failed”

Offer two solutions to Yanhua Mini ACDP got error ” open serial port failed, please check whether serial port is occupied” when installing on PC. Here are two images showing the error: Solutions: Solution 1: Firstly, use your phone to connect Yanhua ACDP with the WIFI. (How to connect Yanhua ACDP with your phone?) Secondly, use your […]