The easiest way to amend would be to go back to the place or website where the return was originally filed and prepare the amended return there.
If you wish to amend it using TurboTax, then you have to re-create the return that was originally filed using TurboTax, and then start the amending process. That can be complicated.
**Say "Thanks" by clicking the thumb icon in a post**Mark the post that answers your question by clicking on "Mark as Best Answer"