Product: Mobile > Cell Phones > T-Mobile Cell Phones > SGH-S105
What Is The Flashing Light On My SGH-s105 And How Do I Change It?
The purpose of the service light is to let you know that your phone has a signal coming in, and it is located on the outside of the phone just above the flip.
To change the service light option please follow the instructions below:
For more information on the SGH-S105 click here.