@7lastgirl  - Did you get your amended return completed?    If the only correction you need is a SSN, your 1040X will not have any $$ amounts.  I don't believe you should fill in page 2, Part I either because you didn't forget a dependent you just need to correct the SSN.   Correct the SSN in your Federal Information Worksheet,  write an explanation about incorrect number on original return, print 1040X and 1040 with the correct SSN, mail to IRS then wait and wait and wait.    Be detailed in your explanation.  I would write what SSN was on original and what SSN is correct.