Hold the physical reset button for 10 seconds to revert settings to default while keeping the current firmware.
Updating the firmware on your GM220-S isn't just about getting new features; it’s often about maintaining a healthy network. Key reasons include: Firmware Gm220-s
Most GM220-S units are . This means the service provider (such as Movistar, Claro, or others) pushes updates automatically over the fiber line (OAM/OMCI). Hold the physical reset button for 10 seconds