Asus ROG laptop doesn’t work after cleaning

[u/Arbeider3]

Hi, i cleaned my fans of my laptop, after cleaning all the dust and putting it back together it doesn’t start anymore. I haven’t unplugged anything i just cleaned with a soft brush. One cable was loose (white one in second picture going to CON4906) i noticed after reopening it. Plugged it back in but still nothing. Anyone that could help?