For devices with the new SE processor, after upgrading the firmware to v1.5.3 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 improvement

1. Supports the dual SE processor.

Bug Fixes

1. Migration malfunction occurs when the firmware is upgraded from v1.3.1 or earlier to v1.4.0 or later (Affects version: v1.4.0).

  • Migration did not complete and the device boots to the main screen, some keys do not work or an abnormal screen is displayed.

2. Intermittently, the image log is logged abnormally (Affects version: v1.4.2).

3. Mobile card authentication suddenly does not work (Affects version: v1.4.0).

4. When using the card to authenticate to the device, the card that was normally authenticated fails intermittently (Affects version: v1.0.0).

5. Device does not boot correctly (Affects version: v1.0.0).

6. Device abnormally restarts when Image Log is Enabled and image log is logged on the device (Affects version: v1.5.1).

7. User ID information was not included when using the BS2_GetLogSmallBlobEx function in the SDK to load the event log for the device’s mask detection and temperature measurement operation (Affects version: v1.0.0).

8. Device does not recognize certain HID iCLASS Seos cards (Affects version: v1.0.0).