There is a plastic rubber around the Microphone, make sure that you un-mount and mount this proper on the new part, in case it's not there. If the microphone rubber is wrongly placed, the mic works aweful. I had to open my phone twice to fix that.
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.