I screwed on my laptop some time ago because I wanted to remove the hard drive. When the laptop was open and the hard drive removed, I also pulled out the fan cable. After I plugged in the parts, attached the flap and tried to start the laptop, it remains motionless. The battery was in the housing and the power adapter on the device. Not even the fan started when starting.
I don't know if I left damage with my action and how can I fix it.
You wrote the "magic word" yourself:
"The battery was in the case and the power adapter on the device."
That means: You may have killed the mainboard. That would mean total loss.
If everything is plugged in correctly again, you may have created a short circuit somewhere. This is very difficult to find and repair.
I wanted to see if he could figure it out himself.
You could have looked there for a long time. Mohhhjaaa
Honestly: if you disassemble a device while it is live, it is your own fault. You should think that much!
According to your description, the device should now be total damage. You can still try it in a repair cafe… There's certainly nothing more if you do not want to fall back on and pay for the manufacturer's customer service, who will tell you that the mainboard is defective.
