Old revisions Add to book Export to PDF Book Creator Add this page to your book Book Creator Remove this page from your book Manage book (0 page(s)) Help Version 1.2.4 (V1.2.4_211112) Release 2021-11-17 Devices with the new BLE chip cannot downgrade to a lower version after upgrading the firmware to v1.2.4. Devices with existing BLE chips can be downgraded to a lower version. For more information, check the serial number of the device and contact the Suprema (supremainc.com). New Features and Improvements 1. Supports a new BLE (Bluetooth Low Energy) chip. The BLE chip parts of the hardware have been changed, and the firmware has been upgraded to be compatible with both the existing and new BLE chips.