Samsung Gear Fit *#0*# is Test Mode For Samsung Device Samsung Galaxy Gear Fit Also Has This Hidden Code How to Enter: 1- Settings > Gear Fit Info > About Gear Fit 2- Tab 10 Times on Bottom Right Of Display Layout 3- Tab 10 Times on Top Right Of Display Layout KeyPad (Dial Mode) Will Arrival Now Press 4- *#0*# The Test Mode WIll Be Show (Red Green Blue White Vibration Dimming Sensor Touch Sleep HRM) *#1234# - for AP and CSC*#7284* - UART & USB settings*#232337# - BT address*#2663# - touch screen version*#9900# - for "SysDump"*#7780# - factory reset *2767*3855# - hard reset