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I replaced KBC. Now it power up and got video but only works without RTC battery. If I put rtc battery doesnot power.
I have another L850 and already tried another power button and cable and I checked 3V goes to 0 when power button is pressed.
You are the Master, yes. Pretty easy to find LID in this board. It connec to pin 75 and it was on 0.6V. I force it to 3.3V but all the same. Then I found out that KBC 775 I put is version P and original one is version L. Then I replaced KBC again and now it works and I have 3.3V in pin 75 - LID
I also compared all 128 pins between both KBC and there were 7 different. Now it works. Thanks Duke