Xhorse Multi Prog V1.4.2.0 Not Connect with Any ECUs?

Problem:

Xhorse multi prog update to new version of software 1.4.2.0 seconds before work begins, also new DB, since i’m not able to connect to any ECU. tried edc17cp49, edc17cp02, 2x edc17c50. Error connection failed. Has anyone experienced the same issue?

xhorse multi prog db44 connection failed 1

Solution:

Do ECU and MCU cable test – MCU cable test from Help – auxiliary function, ECU cable test from HELP – test channel – type 170, connection diagram on the right.

Then send test report to Xhorse engineer to analyse the problem.