No Camera, No Bluetooth...

It's a second-hand laptop, and I only discovered that the camera wasn't working after the screen fell off and the camera fell out....

After trying all the online advice without success, I bought and fitted a replacement camera. Still no good, but it's very possible that I broke tiny cable along the way.

I went on to giving the whole machine a thorough dusting, renewing the thermal compounds under the heat sink and replacing the hard drive with an SSD, which made everything fabulous except the camera of course, and also now, there's no Bluetooth!

I would love to be able to fix the camera if at all possible, but what could have happened to the Bluetooth?

I noticed a bit of bare wire on a cable near the Magsafe socket, and covered it with electrical tape.... Could that be the problem? Do I need to replace that cable?

Please help....