Yahoo Account Key Problem

[clarioncomputer]

I can't access Yahoo Mail on my Android because at sign in they ask me to fill in an old phone # which is defunct. I cannot find a manage account option to change the phone #-I'm new at this smart phone stuff. They don't give an option to sign in the old way.

[dazzle]

Go to the Yahoo sign-in page. Enter your email address, then click Next. Click Use text or email to sign in or Try another way to sign in. Enter the missing digits of your phone number, then click Submit