You're looking for the updated firmware for the ZKTeco K40 Pro!
: After the device restarts, return to Sys.Info to confirm the new version is active. Key Performance Updates (2025-2026) The latest system updates focus on: Download Center - ZKTeco zkteco k40 pro firmware download updated
data sheets and user manuals on the ZKTeco India product page . Firmware for Indian models is typically managed through local support to ensure compatibility with regional network settings. You're looking for the updated firmware for the
Save the firmware upgrade pack from the official ZKTeco Support Page . Prepare USB: zkteco k40 pro firmware download updated