Error 'Mobile Locked' when you sign into Yahoo on a mobile device
One of the many security safeguards on your account is the "Mobile Locked" error. It displays on the mobile sign-in page whenever someone has made multiple failed attempts to sign in to your Yahoo ID using a mobile device. Fixing the error is easy -- just sign in to your Yahoo ID from a computer.
- On a desktop computer, go to the Yahoo sign-in page.
- If you're already signed in, click Is this not you?
- Enter your Yahoo ID and password.
- Click Sign In.
- Sign in to your Yahoo ID using your mobile device.