Hi Tom,
The issue you're encountering with the Microsoft Authenticator app asking for your screen lock PIN and then denying access despite correct entry seems to be a complex one, potentially involving a bug or compatibility issue between the app and your Android version or device. Here are several steps and considerations that might help resolve or pinpoint the problem:
- Check for App and OS Compatibility
- The version of Microsoft Authenticator (6.2004.2757) you're using might have known issues with certain Android versions or devices. Since your device is running Android 7 and cannot upgrade to a newer version of the Authenticator app, there could be compatibility issues at play.
- Verify whether there are any known issues with this app version on Android 7 by checking online forums or Microsoft's support site.
- Review App Permissions
- Ensure that Microsoft Authenticator has all the necessary permissions enabled. Sometimes, lack of certain permissions might cause the app not to function as expected.
- Go to Settings > Apps > Microsoft Authenticator > Permissions and make sure it has access to everything it needs.
- Try Using a Different Authentication Method
- If possible, try using a different authentication method temporarily, such as SMS codes or email verification, to access your account. This isn't a solution to the Authenticator problem but can help you access your account in the meantime.
- Reinstall Microsoft Authenticator
- If none of the above works, consider reinstalling the Microsoft Authenticator app. Make sure you have backup access methods set up for your account since reinstalling the app might remove any existing tokens.
- Caution: This step could result in losing access to your tokens. Ensure you have backup codes or another phone where you can receive SMS codes.
Hope this helps you, please consider accepting the answer to help increase visibility of this question for other members of the Microsoft Q&A community. If not, please let us know what is still needed in the comments so the question can be answered.