ID49c touchpad stopped working after dismantling the laptop

Hi, the touchpad on my Gateway ID49C laptop stopped working. Here’s the sequence of events…

Hardware:
- There was an issue with the charger jack
- I dismantled the laptop and soldered the loose wire in the jack
- When I put the laptop together again, the touchpad stopped working
- I thought I damaged the part (it was working fine before), so I ordered a new (used) one on eBay
- …it also doesn’t work and nothing glows as it used to
- Other than that the computer works fine and I’m using an USB mouse
- As far I can see, the touchpad is attached to the MB by one little cable. I tried to connect it securely multiple times and it's sitting in pretty tight now.

Software:
- It’s not it FN – F6 issue, I toggled it many times
- The touchpad is not listed in the device manager. It only appears (with a yellow triangle) when I go to “hidden devices”. It says “The device is not present, is not working properly, or does not have all its drivers installed. (Code 24)
- There is nothing about the touchpad in BIOS
- I reinstalled the driver for touchpad, it made no difference
- I reinstalled the BIOS…I think…I see no difference

Any ideas?

 

Well...problem solved.
I think the solution was to install the new driver from Device Manager (browsing for the folder) rather than using the exe file.
This was described here:
Acer Synaptics Touchpad - Finding Internal PS/2 port in Device Manager Solved - Windows 7 Help Forums

I now suspect the new touchpart pad was never needed, but I'll never know because I'm not dismantling the thing again.