- About Fingerprint biometrics
- Installation and Solution to Authentication Problems
This web page was designed to support various users from Nigeria with solution for DigitalPersona 4500 (4.0.0.128) driver and license activation services that enables the devices function perfectly as expected.Solution to an Error Report:
"Unable to Authenticate
Input /Output Error and No Scanner Connected"
We support and work with you online, wherever, whenever, fast and problem solve guaranteed.Remember we work and work until problem solved.
For Installation and Solution Support in:
Lagos, Agege, Alagbado, Abule-Egba and it environ.Click here:
or Email: dap.4500biometric[at]ymail.com
NB: Dap Concept® is never by any way owned or related to DP, JAMB or Sidmich Nigeria.
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This service is free!


