This is the most common method for Time & Attendance terminals.
| Type | File Extension | Purpose | Update Method | | :--- | :--- | :--- | :--- | | | .img , .bin , .pkg | The core operating system (Linux-based, ZK OS). Contains device drivers, UI, and communication stacks. | USB, ZKAccess Software, or ZKBioSecurity | | FP (Fingerprint) Firmware | .fpt , .fp | Algorithm and driver for the optical or capacitive fingerprint sensor. | Via device menu or software | | RFID/Mifare Firmware | .bin | Card reader protocols (e.g., 13.56MHz, 125kHz, DESFire). | Only via hardware flasher or special tool |
: Obtain the correct firmware upgrade pack for your specific model from the official support site.
High-priority security updates, such as those released in June 2024 to address vulnerabilities in standalone terminals, are often announced through Official Notices Standard Update Procedure
: Drag and drop the update file onto the USB drive. It should be placed in the root directory, not within folders like "DCIM," to ensure the device can locate it.
Turn the device over. Look for a sticker with: