Asus华硕 ROG Zephyrus G14 幻14 硅脂更换

I followed this and even used ifixit tools and now my laptop won't boot. No bios, no charge light, no cpu light, no fans. I followed it exactly, grounded myself, didn't touch the motherboard, didn't even get up as to not accidentally generate static, worked on concrete and a wooden table, none of the connections are loose or damaged. It just won't turn on. What happened and how can I fix it?