You HAVE to use the original file as the amended if you want to Efile it.

If you had a file named JonesTom.20i that you originally Efiled but now you need to amend it.

To make a copy, youd open JonesTom.20i and choose Save As and name it JonesTomOriginal.20i and uncheck the EF boxes on it, save and exit.....that JonesTomOriginal.20i file disappears from the EFCenter and you're left with JonesTom.20i, the original file that you Efiled, THATS the one you have to use for the Amended return.