Fix Error 904: Aadhaar Biometric Locking for NSP Students

Understanding Aadhaar Biometric Locking and Scholarship Errors

In 2026, the National Scholarship Portal (NSP) has transitioned to a highly secure Face Authentication system. While this prevents identity theft, many students are encountering technical hurdles, specifically Error 904. This error typically occurs when your Aadhaar Biometric Lock is active, preventing the NSP OTR app from verifying your data against the UIDAI database. At YojanaRadar, we aim to simplify these government processes for you.

What is Error 904 in NSP Face Authentication?

Error 904 is a status code returned by the UIDAI server during the authentication process. It signifies that the 'Biometric Lock' is enabled on your Aadhaar number. When this lock is on, any attempt to use your fingerprints, iris, or face for authentication will be automatically rejected to protect your privacy. However, for students applying for scholarships, this means the Face Authentication process will fail repeatedly until the lock is disabled.

How to Unlock Aadhaar Biometrics Using the mAadhaar App

To fix Error 904, you must manage your lock status. The most efficient way is through the official mAadhaar mobile application. Follow these steps:

• Download and Register: Install the mAadhaar app from the Play Store or App Store and link your registered mobile number.
• Login to Profile: Enter your Aadhaar number and the OTP sent to your mobile.
• Locate Biometric Settings: On the dashboard, look for the 'Biometric Lock' status. If it shows a red icon or says 'Locked', you need to take action.
• Temporary Unlock: You can choose to 'Unlock Biometrics'. This usually stays active for 10 minutes, allowing you enough time to complete your NSP authentication.
• Disable Lock: For a smoother experience, you can permanently disable the lock until your scholarship verification is complete, and then re-enable it later for security.

Step-by-Step Guide to NSP OTR Face Authentication

Once you have unlocked your biometrics, follow these steps to ensure a successful verification on the National Scholarship Portal:

1. Open the NSP OTR App on a smartphone with a high-quality front camera.
2. Enter your One-Time Registration (OTR) details.
3. Ensure you are in a well-lit room with a plain background.
4. When prompted for face authentication, keep your head steady. The app will capture your image and cross-reference it with the UIDAI vault.
5. If the Aadhaar Biometric Lock was the only issue, the system will now display a 'Success' message, and your OTR will be verified.

Why Students Should Use Biometric Locking After Application

While you must unlock your biometrics for the scholarship process, Aadhaar Biometric Lock is a powerful security feature. Once your NSP application is submitted and verified, we highly recommend re-locking your biometrics. This prevents unauthorized individuals from using your Aadhaar for fraudulent transactions or identity misrepresentation.

Common Troubleshooting Tips for NSP OTR App

If you have unlocked your biometrics but still face issues, consider these factors:

• Internet Connectivity: Ensure you are on a stable 5G or Wi-Fi connection as face data requires high bandwidth.
• App Version: Always use the latest version of the NSP OTR and Aadhaar FaceRD apps.
• Camera Permissions: Ensure the app has permission to access your camera and location.
• Lighting: Avoid shadows on your face, as the AI might fail to map your facial features correctly.

Conclusion

Securing your scholarship through the National Scholarship Portal should not be a stressful experience. By understanding how to manage your Aadhaar Biometric Lock and resolving Error 904, you can ensure that your face authentication is seamless. Keep your mAadhaar app handy and always check your lock status before starting the NSP process. For more updates on Indian government benefits, stay tuned to YojanaRadar.