u/IndicationAromatic22

I disassembled my Dell Latitude 5300 to clean the fan, making sure to disconnect the battery before unplugging the fan itself. After putting everything back together, the laptop wouldn't turn on. I opened it up again and realized I hadn't plugged the fan in, and the battery cable wasn't fully seated. Even after reconnecting both, the machine still won't power on at all—not even after reseating the RAM, performing a hard reset, or trying to run it on the charger with the battery disconnected. Could I have fried the motherboard because the power cable wasn't connected properly?

https://reddit.com/link/1un3yea/video/ynhjbbe6e6bh1/player