How to enable OneDrive access from devices that don’t use OAuth like modern authentication?

Step 1: Sign into Office 365 admin portal via https://portal.office.com

Step 2: Click on Admin from the left pane and navigate to All admin center > OneDrive.

Step 3; Switch to the Device Access tab.

Step 4: Check the Allow access from apps that don’t use modern authentication checkbox.

Step 5: Click Save.