"KCS" v3.9.1 firmware BIN file download

[admin]

send me your email, i send KC868-A16v3 schematic PDF file to you, so that easy to check issue.

[twostar]

I've already used the A16v2 schematic PDF to figure out the issue, it's more a case of the circuitry being set up in an unexpected way, i.e. where the LEDs indicate a voltage present on the output (even if it's off) rather than indicating that the output in on.  In any case though I'll PM you my email address...