In the WebView address bar, type: https://www.google.com
The phone should automatically detect external storage. A notification pops up: "USB drive tapped for file transfer."
If you plan to sell your OnePlus Nord, always remove your Google account manually before factory resetting (Settings → Accounts → Google → Remove Account). That single step prevents the entire FRP nightmare.
You will now see the Google Search bar appear on top of the setup wizard. Tap it. Type: "YouTube" and open the YouTube app. If YouTube isn’t there, type "Chrome" .
Go back to the "Welcome" screen. Press and hold both volume buttons simultaneously for 5 seconds. You will hear a voice: "TalkBack is on."