Imagine you’ve just bought a secondhand Galaxy phone from a stranger in a coffee shop. It looks perfect, but how do you know if the screen has hidden "dead" zones or if the sensors are actually firing? This is where the —a "secret" menu used by technicians—becomes your best friend. The Hidden Gateway: *#0*#
Imagine you’ve just bought a secondhand Galaxy phone from a stranger in a coffee shop. It looks perfect, but how do you know if the screen has hidden "dead" zones or if the sensors are actually firing? This is where the —a "secret" menu used by technicians—becomes your best friend. The Hidden Gateway: *#0*#



