I installed the Fortin Evo-all with T-Harness on my 2020 Silverado 2500HD that has no Onstar, then added the Linkr LT2 and everything works except the door locks. I checked continuity of the purple and purple/white wires from the Evo-All plug to the pins on the BCM and the wires are fine. With the Evo-All disconnected I can control the door locks by applying ground to the purple and purple/white wires. I have performed a full reset of the Evo-All multiple times, and tried at least 20 different flash configurations and nothing. It seems as if the Evo-All is not applying ground for lock control, possible firware or module issue because the Evo-All is Flashing the Blue light for lock via the Linkr LT2 and the red and blue for unlock. Any feedback would be greatly appreciated.