These are the MagTek Messaging Schema (MMS) commands supported by the DynaProx contactless reader, grouped by function — payment transactions, NFC/MIFARE pass-through, user-interface control (barcode, buzzer, card emulation), device control and settings, file operations, security, and diagnostics. Each entry links to the command's full definition — request and response layout, parameters, and examples — in the shared DynaFamily (MMS) Programmer's Manual. Use this page as your index when integrating the DynaProx into a host application.
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The host uses this command to start a payment transaction.
The Host uses this command to send commands and receive responses to and from a MIFARE Plus tag.
Card emulation is initiated by receiving a 0x1840 command from the host.
The host uses this command to start sending unsecured files to the device for storage or processing
The host uses this command to request a file stored on the device.
The host uses this command to request the file information of a file stored on the device.
The host uses this command to request the deletion of a file stored on the device.
The host can use this command to change the device’s lock passcode.
The host uses this command to retrieve information about a key slot, including details about the key stored in that slot.
The host uses this command to provide the device with additional/modified data to resume a transaction that is currently paused.
The host uses this command to cancel a transaction that is currently in progress.
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The host uses this command to send commands and receive responses to and from a NTag/MIFARE Ultralight.
After a MIFARE Tag is activated, the host uses this command to send commands and receive responses to and from a MIFARE tag.
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The host uses this command to provide a cardholder selection to the device when the device itself does not have a display or inputs to prompt the cardholder for a selection.
The host uses this command to direct the device to arm or disarm the barcode reader for reading a barcode outside the scope of a transaction.
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The host uses this command to reset the device.
The host uses this command to specify which notifications the device should send on each of its available interfaces
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The host uses this command to get information about the device or its configuration / settings.
The host uses this command to set device configuration / settings that do not require security.
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Large blobs of data uploaded to / downloaded from the device are referred to as “files” and share a common set of commands documented here, and special message type Data File Message.
The host uses this command to send a firmware image file, signed by MagTek, to the device as the first step in updating firmware.
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The host uses this command to commit a file previously uploaded using Command 0xD801 - Load (Firmware File) into the device’s permanent memory after the device has authenticated the file.
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The host uses this command to prompt the device for a response that contains the same payload it sent.
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Requests a random challenge from the device, used to construct a secured command.
The host uses this command to transmit another command securely
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The host uses this command to complete the ECDHE-ECDSA Key Exchange protocol, which enables the host and the device to generate the same TEMP KBPK key to use with Command 0xEF01 - Load Key Using TR-31 to load the Master Transport Key (MTK).
The host uses this command to send commands and receive responses to and from a MIFARE DESFire Tag.
The host uses this command to start a buzzer for playing a sequence of tones. Each sequence can have a minimum of 1 to maximum of 10 tones.
The host uses this command to set device configuration / settings securely.
The host uses this command to start sending secured files to the device for storage or processing.
The host uses this command to load a key into one of several available slots in the device’s secure memory.