# Service operations

In the **"Profile"** section, you can perform the following service operations:

<figure><img src="/files/vKa1D69Sysz4fLOH4znF" alt="" width="163"><figcaption></figcaption></figure>

## Change PIN

To change your PIN in **Hideez Authenticator**, follow these steps:

1. Open the **"Profile"** section and click **"Change PIN"**.
2. Enter your current PIN.

{% hint style="info" %}

* You have **three attempts** to enter the current PIN.
* If you enter the incorrect PIN three times, you will not be able to change it until you successfully authenticate using the correct current PIN.
* PIN change is only possible **after entering the current PIN**, even if biometric login is enabled.
  {% endhint %}

3. Set a new PIN and confirm it.

<div><figure><img src="/files/nlMA1ht60BWGK5Fm6D66" alt="" width="165"><figcaption></figcaption></figure> <figure><img src="/files/mHAYyEBZ2eCwzISr7CmC" alt="" width="164"><figcaption></figcaption></figure></div>

{% hint style="info" %}
**Note:** Remember your new PIN! If you forget it, you will need to delete the key and register it again.
{% endhint %}

{% hint style="warning" %}
**Restrictions:**

* You have **10 attempts** to enter your PIN.
* After **5 unsuccessful attempts**, each subsequent attempt can only be made after **3 minutes**.
* If you enter the wrong PIN 5 more times after that, all data in the app will be erased, and you will no longer be able to use your accounts for authentication.
  {% endhint %}

## Enable Biometric Authentication

You can enable biometric authentication alongside your PIN to access your authentication accounts.

1. Open the **"Profile"** section.
2. Enable biometrics by toggling the switch.
3. Scan your fingerprint using the fingerprint scanner.

Once enabled, biometrics can be used to log in to the app without entering your PIN.

{% hint style="info" %}
**Note:** You can disable biometrics and use only your PIN. However, this **reduces security**, and we do not recommend it.
{% endhint %}

## Interface Language

You can choose from the available interface languages:

* **English**
* **Ukrainian**

## Quick Guide

This section provides an overview of the app's key features.

## Help

In this section, you will find:

* Links to documentation with a complete list of app features.
* An option to submit a support request to our team.

## About the App

Here, you can request a **trial version** of the software.

## Submit a Report

If necessary, you can send a report to improve the product or investigate a specific issue.

{% hint style="info" %}
**Note:** Log files containing event records do not store or collect personal information.
{% endhint %}

## Data Erasure

You can erase all data from the app:

1. Tap **"Log Out"** and select **"Erase All Data"**.

<figure><img src="/files/l4jeMr7QBkMzTI3FVBSg" alt="" width="326"><figcaption></figcaption></figure>

2. Alternatively, tap **"Log Out"** on the login screen and confirm your action.

<div><figure><img src="/files/owj9xCaTeIKlqsLk3KBw" alt="" width="164"><figcaption></figcaption></figure> <figure><img src="/files/6kXlGtqwZ8t9r3ZSxjOC" alt="" width="167"><figcaption></figcaption></figure></div>

{% hint style="warning" %}
**Attention**: After you erase all data in the application, you will no longer be able to:

* Use your account to log in to the server.
* Generate OTP passwords.
* Unlock your workstation.
  {% endhint %}


---

# 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://authenticator.hideez.com/user-guide/android-guide/service-operations.md?ask=<question>
```

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.