Systems and methods for operating a marker. The method comprising: receiving, by a Radio Frequency Identification (“RFID”) element of the marker, an RFID deactivation signal transmitted from an external device; and responsive to the RFID deactivation signal, supplying power from the RFID element to a detuner element so that the detuner element switches from a first state to a second state. The marker's resonant frequency is changed to a first value that falls outside of an Electronic Article Surveillance (“EAS”) systems operating frequency range when the detuner element switches from the first state to the second state.

Systems and methods for operating a marker that involve receiving, by a Radio Frequency Identification (“RFID”) element of the marker, an RFID deactivation signal; and responsive to the RFID deactivation signal, supplying power to a detuner element of the marker so that the detuner element switches from a first state to a second state. The marker's resonant frequency is changed to a first value that falls outside of an Electronic Article Surveillance (“EAS”) systems operating frequency range when the detuner element switches from the first state to the second state.

Systems and methods for operating a marker. The method comprising: receiving, by a Radio Frequency Identification (“RFID”) element of the marker, an RFID deactivation signal transmitted from an external device; and responsive to the RFID deactivation signal, supplying power from the RFID element to a detuner element so that the detuner element switches from a first state to a second state. The marker's resonant frequency is changed to a first value that falls outside of an Electronic Article Surveillance (“EAS”) systems operating frequency range when the detuner element switches from the first state to the second state.

Systems and methods for operating a marker. The methods comprise: storing energy collected by an energy harvesting element of the marker; using the stored energy to enable operations of the marker's communications element; receiving, by the marker's communications element, a marker deactivation signal transmitted from an external device; and causing either a resonator to be prevented from receiving transmit bursts emitted from an EAS system, a bias element's magnetic field to be normalized, or a resonator to be physically prevented from vibrating, in response to the marker deactivation signal's reception.

Systems and methods for operating a marker. The method comprising: receiving, by a Radio Frequency Identification (“RFID”) element of the marker, an RFID deactivation signal transmitted from an external device; and responsive to the RFID deactivation signal, supplying power from the RFID element to a detuner element so that the detuner element switches from a first state to a second state. The marker's resonant frequency is changed to a first value that falls outside of an Electronic Article Surveillance (“EAS”) systems operating frequency range when the detuner element switches from the first state to the second state.

Aspects of the present disclosure include methods, apparatus, and computer readable medium for managing a removal code of a tag includes providing information associating the tag with a merchandise item, wherein the information includes a removal code for removing the tag from the merchandise item, receiving, from a requesting device, a request for the removal code, authenticating the request, and transmitting, in response to successfully authenticating the request, the removal code to the requesting device, wherein the removal code is configured to be transmitted by the requesting device to the tag to remove the tag from the merchandise item.

Aspects of the present disclosure include methods, apparatus, and computer readable medium for managing a removal code of a tag includes providing information associating the tag with a merchandise item, wherein the information includes a removal code for removing the tag from the merchandise item, receiving, from a requesting device, a request for the removal code, authenticating the request, and transmitting, in response to successfully authenticating the request, the removal code to the requesting device, wherein the removal code is configured to be transmitted by the requesting device to the tag to remove the tag from the merchandise item.

Systems and methods for operating a marker. The method comprising: receiving, by a communications element of the marker, a marker deactivation signal from an external device; and causing a coil surrounding at least the marker's resonator to be shorted in response to the marker deactivation signal, by supplying power to a deactivation element so that the deactivation element switches from an open state to a closed state. In some scenarios, the power is supplied by an energy harvesting element disposed in the marker.

Systems and methods for operating a marker. The method comprising: receiving, by a Radio Frequency Identification (RFID) element of the marker, an RFID deactivation signal transmitted from an external device; and responsive to the RFID deactivation signal, supplying power from the RFID element to a detuner element so that the detuner element switches from a first state to a second state. The marker's resonant frequency is changed to a first value that falls outside of an Electronic Article Surveillance (EAS) systems operating frequency range when the detuner element switches from the first state to the second state.

Systems and methods for operating a marker. The method comprising: receiving, by a communications element of the marker, a marker deactivation signal from an external device; and causing a coil surrounding at least the marker's resonator to be shorted in response to the marker deactivation signal, by supplying power to a deactivation element so that the deactivation element switches from an open state to a closed state. In some scenarios, the power is supplied by an energy harvesting element disposed in the marker.