XS2-APB, XS2-QAPB and XS2-OAPB types of X-Station 2 model support HID iClass card type through SE processor.
For devices with the new SE processor, after upgrading the firmware to v1.1.4 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. (supremainc.com)