Sign-in & Login Problems

Fix OneNote Sign-In Problems and Error 0xE000078B on Android

Maira Mehtab Sep 22, 2026 869 views

Question details

The user is unable to sign into the OneNote app on an Android phone, frequently encountering error code 0xE000078B after a fresh installation or password update.

Product: Microsoft OneNote
Device & OS: Android
Scenario: Attempting to log into the OneNote Android app after reinstalling the application or changing the Microsoft account password.
Observed behavior: The app fails to authenticate the login, throwing error 0xE000078B and stating that OneNote must be online, even when the device is connected to the internet.

Before you start

Verify that your Android device has an active and stable internet connection, and ensure you have your newly updated Microsoft account password ready before resetting the app.

Solution 1Recommended

Clear OneNote Cache and App Data

Resetting the OneNote app data clears corrupted offline login tokens and forces a fresh authentication prompt, which effectively resolves the 0xE000078B error loop.

When you update your Microsoft account password or reinstall the app, residual cache files can prevent the app from communicating securely with authentication servers.

Open Android Settings

Navigate to your Android device's 'Settings' app and select 'Apps' or 'App Management'.

Locate OneNote Storage

Find and tap on 'OneNote' in your list of installed apps, then tap on 'Storage' or 'Storage & cache'.

Clear App Data

Tap 'Clear Cache' followed by 'Clear Data' (or 'Clear Storage'). Confirm any on-screen prompts.

Restart and Sign In

Open the OneNote app again and enter your login credentials. If the error 0xE000078B appears, ensure your internet is connected and tap 'Try again while online'.

Prompt Action Required: Sometimes the error message is a false flag regarding your network. Tapping 'Try again while online' immediately after clearing the data usually forces the sign-in to succeed.

Solution 2

Toggle Network Connections

Switching between Wi-Fi and mobile data helps bypass temporary network restrictions, DNS caching issues, or ISP routing problems preventing Microsoft servers from authenticating you.

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Use WPS Office for Seamless Note-Taking and Document Management

If you continue experiencing frustrating login loops and sync errors with Microsoft OneNote, consider switching to WPS Office. It provides a lightweight, unified suite for your documents, notes, and PDFs without complicated sign-in hurdles, working smoothly across all your mobile and desktop devices.

1. Download WPS Office: Install WPS Office for free from the Google Play Store on your Android device.
2. Sign In Easily: Open the app and quickly sign in using your Google account, email, or other straightforward login methods.
3. Start Creating Notes: Tap the '+' icon at the bottom of the screen and select 'Memo' or 'Document' to start writing down your notes immediately.

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Frequently Asked Questions

What does OneNote error 0xE000078B mean on Android?

Error 0xE000078B is a network and authentication error indicating that OneNote is struggling to communicate with Microsoft's servers. It typically occurs after a password reset or reinstallation when old authentication tokens clash with new ones.

Will clearing OneNote data delete my unsynced notes?

Yes, clearing app data from your Android settings will wipe any notes stored locally that haven't been synced to OneDrive. If possible, back up unsynced text manually to another app before clearing the storage.

Why am I stuck in a sign-in loop on the OneNote app?

Sign-in loops usually happen because corrupted cache files or outdated credentials are saved on your Android device. Clearing the app's storage and cache from your Android Settings is the most reliable way to break this loop.

Login & Account Issues