Sixth iteration of Apple iPhone, announced on September 12, 2012. Repair of this device is similar to the previous models, requiring screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Black or White.
The reason you have small dots on your screen is because pixels in your lcd have died causing it do look black in that dead area. Your only was of fixing that issue is replacing the lcd/digitizer. The lcd/digitizer is only $50.