Mfs100clientservice Version 9.0.3.8 Jun 2026

Continuously scans for the MFS100 device when plugged in.

: Fully compatible with the latest Registered Device (RD) Service standards.

Version 9.0.3.8 is specifically designed for Aadhaar Auth API 1.6 compliance.

1. Error: "Client Service Not Found" or "Mantra RD Service Stopped" Mfs100clientservice Version 9.0.3.8

Type chrome://flags in your address bar. Search for the option "Allow insecure certificates for resources loaded from localhost" . Toggle this preference to Enabled and click Relaunch . 3. Fingerprint Capture Timeout / Failed PID Block

Open your browser and navigate to your portal to run a test scan. Troubleshooting Common Errors 1. "Mantra Client Service is Not Running"

Version 9.0.3.8 introduces advanced biometric data encryption algorithms.It prevents data spoofing during transmission.Your fingerprint templates are securely packaged before leaving the device. Improved STQC Compliance Continuously scans for the MFS100 device when plugged in

A key point from developers and community notes is that when dealing with newer Mantra models like the MFS110 for an L1 (level 1) scanner that returns an encrypted PID (Public Identity Data) block, you should not use the older MFS100ClientService. For such hardware, a specific MFS110 Windows Public SDK is required for handling raw image data.

This specific version, , is designed to handle low-level device management, allowing desktop and web applications to perform biometric captures and health checks without needing to manage complex USB protocols or driver-level details. It is frequently deployed in environments requiring high-security biometric authentication, such as Aadhaar/UIDAI-aligned workflows. Key Features of Version 9.0.3.8

The is a critical software driver update.It manages the Mantra MFS100 biometric fingerprint scanner.This service connects the physical scanner to your computer.It enables secure fingerprint authentication across various platforms. Toggle this preference to Enabled and click Relaunch

Open the Windows Run dialog ( Win + R ), type services.msc , and press Enter. Locate Mantra MFS100 Client Service in the list. Right-click it and click Restart . Unplug the USB cord and insert it into a different physical port. 2. HTTPS Localhost Communication Failure

: Follow the on-screen prompts. The installer will typically set up necessary prerequisites like the .NET Framework or required C++ Redistributables.

If you have an older version installed, it is highly recommended to uninstall it first via the Control Panel to avoid driver conflicts.

: The client service needs to communicate over your network. Ensure that your firewall or security software isn't blocking the program's communication ports. [5†L25-L26]