MFA & Verification Issues

How to Change a Forgotten Microsoft Authenticator PIN on Android

Guest Writer Oct 9, 2026 869 views

Question details

The user needs to change a forgotten PIN for the Microsoft Authenticator app on an Android device where biometric login is still functioning.

How to Change a Forgotten Microsoft Authenticator PIN on Android

Product: Microsoft Authenticator
Device & OS: Android
Scenario: Updating security credentials when the application PIN is lost but fingerprint or face unlock still grants access.
Observed behavior: The PIN prompt cannot be bypassed or reset natively within the app interface, as the security lock is typically managed by Android's built-in App Lock feature rather than the Authenticator application itself.

Before you start

Verify that your Android device's biometric authentication (fingerprint or face unlock) is working properly so you do not lose access to your 2FA codes during the reset process. Keep in mind that Microsoft Authenticator typically uses your phone's system-level App Lock rather than a dedicated in-app PIN.

Solution 1Recommended

Change PIN via Android App Lock Settings

Since Microsoft Authenticator relies on system-level security, resetting the PIN via Android's App Lock settings is the most effective method.

Android device manufacturers (like Samsung, Xiaomi, and OnePlus) handle application locking at the system level. This means the PIN you are prompted for is actually your device's App Lock PIN, not a PIN created inside Microsoft Authenticator.

Open Android Settings

Unlock your Android device and open the 'Settings' app from your home screen or app drawer.

Navigate to App Security

Scroll down and tap on 'Apps', 'Applications', or 'Security', depending on your specific phone manufacturer's menu layout.

Access the App Lock Feature

Find and select the 'App Lock' feature. You will be prompted to authenticate using your working biometric login (fingerprint or face scan) to enter the menu.

Modify the App Lock PIN

Look for the settings gear icon within the App Lock menu, select 'Change password type' or 'Change PIN', and set up your new PIN. This new PIN will now be required for Microsoft Authenticator.

Change PIN via Android App Lock Settings

Device Variability: Menu names like 'App Lock' can vary widely between smartphone brands. If you cannot find it, use the search bar at the top of your Android Settings menu and type 'App Lock'.

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Frequently Asked Questions

Why doesn't Microsoft Authenticator have a password reset button inside the app?

Microsoft Authenticator on Android typically relies on the device's native screen lock or App Lock functionality to secure the app. Therefore, PIN management is handled entirely by your Android operating system's settings rather than the app itself.

Will clearing Microsoft Authenticator app data reset my PIN?

Yes, but clearing app data or uninstalling the app will also permanently delete all of your two-factor authentication (2FA) tokens unless you have cloud backup enabled. It is highly recommended to change the PIN through your Android App Lock settings instead to avoid losing access to your accounts.

How do I enable Cloud Backup in Microsoft Authenticator for Android?

Open the Microsoft Authenticator app using your biometric login, tap the three-dot menu icon in the top right corner, select 'Settings', and toggle on 'Cloud backup'. You will be prompted to sign in with a personal Microsoft account to store your encrypted credentials.

Login & Account Issues