White MacBook 2006 Touchpad issue

Hi,
I have a White Macbook from August 2006.
The touchpad button gave me some hard time but I managed to fix it putting a little piece of paper between the touchpad and the battery.
Unfortunately now this doesn't seem to be enough anymore. The button clicks, but somehow is not getting any electrical contact.

I really do not want to spend £100 to get it fixed it now, and I am happy to open it and fix it myself.

What do you think could be the problem?

Thank you!

I think it could just be a worn out part, or, it could be that your battery has expanded causing this to happen (which is not rare).

It could be a loose connection somewhere.
If you really are happy to take it apart yourself you may want to follow this guide on iFixit... word of warning though these Macbook's are a major pain in the bum when it comes to disassembly and reassembling. Make sure you know/ remember/ keep all the screws organised so you can put them all back in the correct places. The amount I have taken apart and having to go back because I have missed one or two screws is ridiculous

Installing MacBook Core Duo Upper Case - iFixit

Hope this helps
- Simon