Firmware Version 2.2.2 (Build No. 2.2.2_260518)
Release|2026-05-19
For devices with the new SE processor, after upgrading the firmware to v2.1.0 or higher, you cannot downgrade to a lower version and downgrade the firmware customized in the lower version.
Devices with existing SE processor can be downgraded to a lower version.
For more information, check the serial number of the device and contact the Suprema.
New Features and Improvements
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Supports feature to set the baud rate of slave devices.
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Supports SL1, SL3, and SL1/SL3 Mix Mode for security level compatibility with MIFARE Plus EV1 cards.
‒ SL1: Compatible mode with MIFARE Classic
‒ SL3: Advanced security mode based on AES
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Improved to distinguish devices that support the Secure Tamper feature.
Bug Fixes
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Calling the BS2_GetDeviceCapabilities function on a slave device connected via RS-485 outputs incorrect values. Versión afectada: 1.0.0
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Arm/Disarm actions did not operate correctly on specific Supervised Input port of the DM-20 connected as a slave. Versión afectada: 1.0.0
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Wiegand format card data of 25 bits or less is not recognized. Versión afectada: 2.2.0