Use a USB drive (8GB or smaller is preferred) and format it to FAT32 .
: Insert the USB into the device's port. Navigate to the device's system menu and select System Update Update Firmware : The process can take up to 10 minutes. Do not power off during this time 2. Via ZKAccess / CVSecurity Software
If you're experiencing issues with the update, let me know your device model and what error message you are seeing, and I can provide more specific troubleshooting steps. Download Zone - Zkteco.eu
The Ultimate Guide to ZKTeco Firmware Updates: Optimize, Secure, and Upgrade Your Devices
Upgrading firmware carries a small risk of "bricking" the device (rendering it permanently unusable) if the process is interrupted or if the wrong file is used. Take these steps before flashing any files:
If you encounter issues during the firmware update process:
Check the sticker on the back of the device for the model name (e.g., MB20, F22, or SpeedFace V5L).
Download the firmware file (usually a .rar or .zip file) from the ZKTeco support site. Extract the files.