If a taxpayer filed Form 1040-NR but should have filed Form 1040, you'll need to submit an amended Form 1040. In Form 1040-X, the nonresident return's information will be entered in the Original column.
TaxSlayer ProWeb does not support deactivating a return that has been transmitted, nor changing the SSN on an accepted return for the purpose of creating a new return with the same SSN, therefore if you filed the original Form 1040-NR you won't be able to amend it to change it to Form 1040.
Additional Information: