Cannot log into onedrive on new iphone

Follow these steps on the new iPhone to resolve OneDrive sign-in issues and error messages:

1. Confirm account and password
   • Open the OneDrive app.
   • On the “Set up OneDrive” screen, enter the correct email address and password for the Microsoft account used with OneDrive.
   • If the username or password might be wrong, use the Microsoft account sign-in helper: Sign-in helper.
2. Check for work/school vs personal account issues
   • Only one Microsoft personal account can be added in the OneDrive app.
   • If signing in with a work or school account and it fails, reset the password using the provided reset option or contact the organization’s IT admin if password reset does not work.
3. Verify network and firewall
   • Make sure the iPhone has a working internet connection (Wi‑Fi or mobile data).
   • If sign-in still fails, test by connecting through a different network (for example, using the phone as a hotspot for another device, or switching Wi‑Fi networks) to rule out a network or firewall issue.
   • If OneDrive can sign in on another connection, contact the internet service provider to ensure Microsoft 365 services are not being blocked.
4. Reinstall the OneDrive app (if it crashes or won’t launch)
   • Press and hold the OneDrive app icon and delete it.
   • Enable Settings > General > Background App Refresh for OneDrive after reinstall.
   • Reinstall OneDrive from the App Store and try signing in again.
5. If still unable to sign in
   • Check that the Microsoft account can sign in elsewhere (for example, Outlook.com or the Microsoft Account dashboard). If sign-in fails there as well, resolve the account issue first using the sign-in helper or password reset.

References:

• Troubleshoot OneDrive for iOS app problems
• Troubleshoot OneDrive mobile app problems
• Fixes or workarounds for recent issues in OneDrive
• What do the OneDrive error codes mean?