Support
How to Move an API License Between Biometric Devices
When and how an API license moves from a damaged Cams or third-party biometric device to a replacement, with pro-rated license and activation steps.
Recover Admin Rights on Biometric Machines When Locked Out
How to regain admin access on a locked biometric attendance machine: remote unlock for Cams devices, options for ZKTeco, eSSL and Identix, and prevention.
Integrate Biometric Devices with Razorpay: Step-by-Step
Steps to connect a biometric device to Razorpay, for Cams Biometrics devices and existing devices such as ZKTeco, using the Cams Biometrics API.
Fix Biometric Device Time Resetting After Restart
If a biometric device loses its time after a restart, the internal CR1220 3V button cell battery likely needs replacing. Here is what to do.
Missing Attendance Data in ERP: How to Troubleshoot
Steps to diagnose missing data in your ERP: involve your ERP provider, then record a test attendance entry and check it on the Device Status page.
Photo and Video Spoof Detection in Facial Attendance
A spoof attack uses a photo or video to fool facial recognition. See how infrared scanning and depth analysis help Cams devices reject fake faces.
Duplicate Punch Duration in Biometric Attendance Systems
What the Duplicate Punch Duration setting does, why it blocks repeated punches within a set time, and when to disable it to record every punch.
Biometric Device Power Supply: Fix Repeated Restarts
Biometric devices that restart repeatedly often have a weak power adapter. Learn the 12V-2A and 12V-4A adapter recommendations and what to do next.
Troubleshooting Offline Biometric Attendance Devices
Biometric device showing offline despite a stable internet connection? Learn how to tell a network problem from a device fault and what to check first.
Callback URL Guide: What It Is and How to Set One Up
Learn what a callback URL (webhook) is, how to create and secure an endpoint that accepts HTTP POST requests, and how to test it with Postman or cURL.
