A couple of quick notes:
1. In Step 3, you lift the cover first from the opposite end shown.
2. Before assuming the problem is the power supply, try replacing the CR2032 3V lithium battery found in the photo for Step 6. If the battery has died, it can cause the unit not to power up. Replacing it is easier and cheaper than a new power supply. :-)
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
No reputation gained yet.