no power after trying replacing inverter

I had problem with my screen, no light however I can see the desktop I see it on an angle. As suggested I bought a new inverter and in order to replace it I open the screen. After I opened the screen and replaced the inverter now my macbook wouldn’t turn on. I can see green light on my adapter and battery is getting charge however nothing happens if I power on. I tried SMC clearing by pressing power button for 10 seconds and also tried to remove RAM to turn on and see any beep with no BEEP. Any suggestions?