# Fingerprint Authentication * Condition: passcode is enabled, and the app allowed biometric authentication. * To access the function, please follow the steps below. **Step 1** * The user touches the fingerprint sensor to authenticate. ![](/files/qhgDdqK3T3tfSI5UmSct) **Step 2** * If the fingerprint is not correct, the warning "Not recognized" will be displayed. Users touch the fingerprint sensor to try again. ![](/files/BzGpm9kUy8AuGEZ22k07) * If the fingerprint is incorrect several times in a row, the fingerprint icon will be disabled and reopened after 1 minute. Users can only enter a passcode for authentication. ![](/files/acnj7yV2h5ft9S23IfPf) ***Note:*** * Tap PIN, if users want to enter the passcode for authentication. ![](/files/LfMY35UJMhC55INiWFWL) * Tap the fingerprint icon, if users want to use fingerprint for authentication (by default). ![](/files/XA8ych06cFmLkbqUg47a) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.fwallet.net/app-fruits-wallet/security-lock/security-authentication/fingerprint-authentication.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.