Few weeks ago, my phone's earpiece stopped working. Because I couldn't afford the downtime, nor a new phone, I decided to repair myself! Google results show tons of results on the HD2 earpiece part, rangeing from just USD2 to USD10. That's really cheap for a self repair effort. I spent just USD6 including shipping. This is how it looks like when dismantled. Look at how small the earpiece is. And most important of all, problem is fixed!