You can fix an upside down video in the free software that you can get for your Mac or Windows desktop.You can use the mobile app to flip or rotation media, but you can't do it with the desktop version of the app.
Step 1: Attach your camera to your computer.
You can use the cable that came with your camera to put it into your computer.
Step 2: On your computer, open Quik.
You can find it in your Start Menu or Finder.If you don't have a desktop computer, you should be able to download a copy from the website.
Step 3: You can import the video.
Go to the center of the screen.
Step 4: You can click the flip switch icon.
This can be seen in the bottom of the window.Your video is going to flip 180 degrees.