How to Fix Stuck Pixels on the iPhone
- 1). Turn the iPhone off.
- 2). Lay a slightly damp cloth across the screen. This will protect it from breaking.
- 3). Place an edge of the eraser where the stuck pixel is located. Gently apply pressure on the stuck pixel, and take note not to disturb any nearby pixels.
- 4). Turn the iPhone back on after about 30 seconds.
- 5). Remove the pencil eraser and damp cloth. The pixel should not be visible.
Source...