HTC HD2 Smartphone I bought in the last week. This is the first wider screen smart phone in the market. Its screen size is to be 4.3 inch touch screen and it also the firstly ever multi touch screen smart phone. This smart phone was the one of the popular cell phone which provides the HTC sense and Toshiba CPU. But now I had little bit upset about this smart phone. Within one month, the external speaker did not work very well. This external speaker does not generate sound. I need help to solve this issue.