The primary source for all ZKTeco Download Center resources, including software and firmware notifications.
For advanced upgrades (like enabling for cloud connectivity), you may need to provide your device's Serial Number , MAC Address , and Current Firmware Version to ZKTeco's engineering department or a certified distributor like EPCOM to receive a specific license or update pack. Upgrading Firmware & Rebooting Device
Many K40 Pro units shipped after 2023 include a pre-formatted USB drive with the baseline firmware inside. This is your safest rollback option.
: Updated firmware enables the ADMS (Automatic Data Master Server) feature, allowing the device to push real-time logs to cloud servers like BioTime.