A Microsoft file hosting and synchronization service.
Hello DavidBrintworth-0130,
I realize that you've encountered a problem when accessing OneDrive using iPhone/iPad. I truly understand your confusion. Let me assist you further.
For me to provide the most accurate solution, would you please let me know few information about the situation you're experiencing:
- Account type Are you signing in with a personal Microsoft account (Hotmail/Outlook.com) or a work/school account?
- iOS details
- iOS version on iPhone and iPad
- OneDrive app version (from App Store)
- Network / privacy Are VPN, iCloud Private Relay, or DNS blockers / firewalls enabled on the device?
- Account history Has this Microsoft account ever been used for:
- Work/school (Microsoft 365 business)
- Multiple tenants
- Family Safety
- Aliases changed recently?
- Exact failure point Where does it fail in the app?
- After email
- After password
- After MFA
- After consent screen
- Immediately loops back to sign‑in
Once I have this information, I will be able to assist you better. Look forward for your respond!