Follow the steps below to amend. I will also include where to enter a k-1. Do not amend until you receive your refund.
How to add a K-1:
Federal Taxes ( Personal in Home and Business)
Wages & Income (Personal Income in H & B)
Choose Explore on my own or I'll choose what to work on (if it comes up)
Then scroll way down to Business Investment and Estate/Trust Income
Schedule K-1 - Click the Start or Update button
Be sure to pick the right kind of K-1. There are 3 kinds, 1041, 1065 & 1120S
https://ttlc.intuit.com/replies/3288565
