iPhone 15 Pro Max recorded video upside down with no sound

Hi there

Please try this

You can easily flip the video right-side up using the built-in tools on your iPhone 15 Pro Max:

1. Open the Photos app and open the upside-down video.
2. Tap Edit in the top right corner.
3. Tap the Crop/Rotate tool icon at the bottom of the screen.
4. Tap the Rotate button (a square with a curved arrow) in the top-left corner twice to rotate the video 180 degrees.
5. Tap Done to save it. 

One important detail missing from your post is the orientation of the iPhone when this particular video was recorded. Were you holding the device in portrait, landscape, or upside-down position? Since your other concert videos recorded that same evening were unaffected, this information could help identify whether the issue was related to the phone's orientation sensors or a one-time recording glitch.

The orientation in which the iPhone is held while recording determines how the video is saved and displayed later. Can you recall whether you were holding your iPhone 15 Pro Max in Portrait, Landscape, or upside-down Portrait/Landscape mode when you started recording?

The iPhone records orientation data along with the video. As a result, a video recorded while the device is held differently may appear rotated, play in an unexpected orientation, or be saved in a format that reflects the position of the phone at the moment recording began.

Knowing exactly how the device was positioned during recording will help determine whether the behaviour you're seeing is expected or whether there may be an issue with the video's orientation metadata.