Hello, i will keep it short. I changed thermo paste cleaned dust put everything back like i always do. I turned computer on - fan spinning power light on but hdd led blinked once and display was off. I removed ram and hdd few times changed ram slots volia somehow everything worked again what a relief! But half keyboard doesnt work. I connected usb keyboard and everything worked on that. Im suspecting motherboard damage? I was gentle like always i damaged nothing. If keyboards ribbon connector is half way in no key would work right? I just went on a trip no time to disassemble right now. Waiting for replies thanks.