Two units of the same model (e.g., ZK-D3180) can have different hardware revisions (V2.0 vs V3.0). Firmware is hardware-specific. Check the sticker on the back of the device.
To successfully execute a process, you must move beyond the mindset of "downloading a file." It is a workflow of trust: zkteco update firmware verified
Ensure the device is plugged into a stable power source (UPS preferred). A power cut during a "verified" update will permanently damage the mainboard. specific firmware version for your device model, or are you looking for a troubleshooting guide for a failed update? Two units of the same model (e