Make sure you save an original copy of your return.
Open TurboTax Business and select Amend a Return from the initial screen.
Rename your amended return so you have clear different original and amended return file names so you do not overwrite your original return.
The process is very intuitive and will step you through step by step what you need to change.
You will need to print and mail in the amended return with corrected K1s.
You can also use the Step by Step feature to access the K1s to update them.
