> For the complete documentation index, see [llms.txt](https://developer.magtek.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.magtek.com/hardware/card-readers/mms-dyna-devices/dynaprox/documents/programmers-manuals/programmers-manual-commands/configuration/device-settings/security-settings.md). # Security Settings ## Property Subgroup 1.2.5.nnn Security Settings - 1.2.5.2.1.1 - 1.2.5.2.1.3 ## Table - Property 1.2.5.2.1.1 Device Lock State


Property Description
Property OID	1.2.5.2.1.1 / 0x010205020101
Name	Device Lock State
Description	This property can be used to get or set the device lock state. Getting this property does not require security, however setting it does. Setting it requires the use of Command 0xD112 - Set Property (Secured) which requires MagTek's involvement. To set the device lock state without involving MagTek use Command 0xEF04 – Load LTPK Protection Key. The value of the device lock state will revert to the value of Property 1.2.5.2.1.2 Device Lock State After Reset after a reset or a power cycle. See Device Lock Feature for more information.
Securing Key	See Command 0xD112 - Set Property (Secured).
Min. Len (b)	1
Max. Len (b)	1
Data Type	Binary
Valid Values	0x00 = Unlocked, 0x01 = Locked
Default	See Property 1.2.5.2.1.2 Device Lock State After Reset.

## Table - Get Request Example


Example (Hex)
AA00 8104 0155D101 840F D101 8501 01 8704 02050201 8902 C100

## Table - Get Response Example


Example (Hex)
AA00 81048255D101 820400000000 84820010 D101 850101 870402050201 8903 C101 00

## Table - Set Request Example


Example (Hex)
TBD

## Table - Set Response Example


Example (Hex)
TBD

## Table - Property 1.2.5.2.1.2 Device Lock State After Reset


Property Description
Property OID	1.2.5.2.1.2 / 0x010205020102
Name	Device Lock State After Reset
Description	This property can be used to get or set what Property 1.2.5.2.1.1 Device Lock State will be set to after the device is reset or power cycled. Systems that use the optional device lock feature should set this property to locked, otherwise all someone would need to do to unlock the device would be to power cycle or reset it. The value of the device lock state after reset property is stored in non-volatile memory so changes made to it will persist after the device is reset or power cycled. See Device Lock Feature for more information.
Securing Key	None
Min. Len (b)	1
Max. Len (b)	1
Data Type	Binary
Valid Values	0x00 = Unlocked, 0x01 = Locked
Default	0x00

## Table - Get Request Example


Example (Hex)
AA00 8104 0155D101 840F D101 8501 01 8704 02050201 8902 C200

## Table - Get Response Example


Example (Hex)
AA00 81048255D101 820400000000 84820010 D101 850101 870402050201 8903 C201 00

## Table - Set Request Example


Example (Hex)
AA00 81040155D111 8410 D111 8501 01 8704 02050201 8903 C201 00

## Table - Set Response Example


Example (Hex)
AA00 81048255D111 820400000000 84820010 D111 850101 870402050201 8903 C201 00

## Table - Property 1.2.5.2.1.3 Device Lock Passcode


Property Description
Property OID	1.2.5.2.1.3 / 0x010205020103
Name	Device Lock Passcode
Description	This property can be used to set the device lock passcode. The value of the device lock passcode is stored in non-volatile memory so changes made to it will persist after the device is reset or power cycled. For security, the host can’t get the value of the device lock passcode from the device. If the host gets this property, the device will always return a length of 0 and no value. Setting this property requires security. Setting it requires the use of Command 0xD112 - Set Property (Secured) which requires MagTek's involvement. To set the device lock passcode without involving MagTek use Command 0xEF07 – Change Device Lock Passcode. See Device Lock Feature for more information.
Securing Key	See Command 0xD112 - Set Property (Secured).
Min. Len (b)	4
Max. Len (b)	63
Data Type	Binary
Valid Values	It can only contain any printable ASCII character.
Default	0x34 0x33 0x32 0x31 (“4321”)

## Table - Get Request Example


Example (Hex)
AA00 8104 0155D101 840F D101 8501 01 8704 02050201 8902 C300

## Table - Get Response Example


Example (Hex)
AA00 81048255D101 820400000000 8482000F D101 850101 870402050201 8902 C300

## Table - Set Request Example


Example (Hex)
TBD

## Table - Set Response Example


Example (Hex)
TBD

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