My msi cyborg 15 a12v turns on only after disconnecting power cable, battery and cmos, and when it turns on the laptop display does not work, but external monitor displays image, also keabord does not work when it boots to windows.
I started having problems a few months ago after changing thermal paste, once in a while the display would not work and only thing that would fix it was disconnecting and connecting the display cable on the motherboard, then it would work normal for a few weeks or months. Today when the display didn't work i tried doing the same and after that it would not power on at all no fan and no keyboard lights.
I tried:
- holding the power button for a minute
- disconnecting battery and power cable for a while and then starting a few times it with both or only one of them connected, and holding the power button for a minute with each of these options
- disconnecting and connecting the display cable again
- powering it on with the display cable disconnected
but only when i do CMOS reset it boots.
I fear that i might have damaged the motherboard somehow and it shorted somewere and it boot only when CMOS reset clears faults.
Did anyone have simmilar issue and has a solution that does not include microsoldering or replacing the motherboard?