I'm try to get the log data from a SpeedFace v5l. When I call the
ReadGeneralLogData(machineNumber);
I get false.
If I call the
ReadAllUserID(machineNumber);
I get true. Any idea why this could be?
When I check the last error. I got 0 ERR_NO_DATA, but we have events on the device
Newly launched ZkTeco devices are not compatible with their SDKs. You have to relay on their web application as officially no SDKs are launched for new devices. Some of the operations given in the SDK will make the SpeedFace V5L to display the "Authendication Failure" randomly. Once this error comes, you have to flash the device, no other option.
So, don't try with ZK's old/new SDKs with new devices with temperature and mask detections. If you need web API, you can try with CAMS (http://camsunit.com/application/biometric-web-api.html), Zk's API Partner.