> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dynamic.xyz/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# MFA Device Management

> How to delete user MFA devices and perform admin resets.

## Deleting a device

Users might need to delete an MFA device if it's lost or replaced. To do so, first authenticate with the device, then use the `deleteUserDevice` function.

**Delete a TOTP device with TOTP code:**

```typescript theme={"system"}
import React, { useState } from 'react';
import { Alert, View, TextInput, Button } from 'react-native';
import { useDynamic } from './path-to-your-client';

export function DeleteMfaDevice({ deviceId }: { deviceId: string }) {
  const client = useDynamic();
  const [code, setCode] = useState('');
  const [loading, setLoading] = useState(false);

  const handleDeleteDevice = async () => {
    if (!code.trim()) {
      Alert.alert('Error', 'Please enter the verification code');
      return;
    }

    try {
      setLoading(true);
      // First, authenticate with the device to create MFA token
      const mfaAuthToken = await client.mfa.authenticateDevice({
        code,
        deviceId,
        createMfaToken: { singleUse: true }
      });

      if (!mfaAuthToken) {
        Alert.alert('Error', 'Failed to authenticate device');
        return;
      }

      // Then, delete the device using the token
      await client.mfa.deleteUserDevice(deviceId, mfaAuthToken);
      Alert.alert('Success', 'MFA device deleted successfully');
    } catch (error) {
      console.error('Failed to delete MFA device:', error);
      Alert.alert('Error', 'Failed to delete MFA device');
    } finally {
      setLoading(false);
    }
  };

  return (
    <View>
      <TextInput
        placeholder="Enter 6-digit code"
        value={code}
        onChangeText={setCode}
        keyboardType="numeric"
        maxLength={6}
      />
      <Button
        title="Delete Device"
        onPress={handleDeleteDevice}
        disabled={loading}
      />
    </View>
  );
}
```

**Delete a TOTP device with recovery code:**

```typescript theme={"system"}
import React, { useState } from 'react';
import { Alert, View, TextInput, Button } from 'react-native';
import { useDynamic } from './path-to-your-client';

export function DeleteMfaDeviceWithRecovery({ deviceId }: { deviceId: string }) {
  const client = useDynamic();
  const [recoveryCode, setRecoveryCode] = useState('');
  const [loading, setLoading] = useState(false);

  const handleDeleteDevice = async () => {
    if (!recoveryCode.trim()) {
      Alert.alert('Error', 'Please enter the recovery code');
      return;
    }

    try {
      setLoading(true);
      // First, authenticate with recovery code to create MFA token
      const mfaAuthToken = await client.mfa.authenticateRecoveryCode({
        code: recoveryCode,
        createMfaToken: { singleUse: true }
      });

      if (!mfaAuthToken) {
        Alert.alert('Error', 'Failed to authenticate recovery code');
        return;
      }

      // Then, delete the device using the token
      await client.mfa.deleteUserDevice(deviceId, mfaAuthToken);
      Alert.alert('Success', 'MFA device deleted successfully');
    } catch (error) {
      console.error('Failed to delete MFA device:', error);
      Alert.alert('Error', 'Failed to delete MFA device');
    } finally {
      setLoading(false);
    }
  };

  return (
    <View>
      <TextInput
        placeholder="Enter recovery code"
        value={recoveryCode}
        onChangeText={setRecoveryCode}
      />
      <Button
        title="Delete Device"
        onPress={handleDeleteDevice}
        disabled={loading}
      />
    </View>
  );
}
```

**Delete a passkey:**

```typescript theme={"system"}
import React, { useState } from 'react';
import { Alert, View, Button } from 'react-native';
import { dynamicClient } from './path-to-your-client';

export function DeletePasskey({ passkeyId }: { passkeyId: string }) {
  const [loading, setLoading] = useState(false);

  const handleDeletePasskey = async () => {
    try {
      setLoading(true);
      await dynamicClient.passkeys.delete({ passkeyId });
      Alert.alert('Success', 'Passkey deleted successfully');
    } catch (error) {
      console.error('Failed to delete passkey:', error);
      Alert.alert('Error', 'Failed to delete passkey');
    } finally {
      setLoading(false);
    }
  };

  return (
    <View>
      <Button
        title="Delete Passkey"
        onPress={handleDeletePasskey}
        disabled={loading}
      />
    </View>
  );
}
```

## Admin Reset

If a user loses all their devices and recovery codes, an admin can reset their MFA from the Dynamic dashboard.

1. Go to the **Users** page in the [Dynamic Dashboard](https://app.dynamic.xyz/dashboard/users).
2. Find the user and open their detail panel.
3. In the **Security** section, click **Reset MFA**.
4. Confirm the action.

This removes all MFA devices from the user's account, letting them set up a new device on their next login.