Portrait mode iPhone 14 plus will not rotate 180 degrees

Hello MilAnLi,

Thank you for using Apple Support Communities. When viewing your Portrait photos, you can rotate the photos by following these steps here: Edit photos and videos on iPhone - Apple Support

Crop, rotate, or flip a photo or video

1. In Photos, tap a photo or video thumbnail to view it in full screen.

2. Tap Edit, tap , then do any of the following :

* Rotate: Tap  to rotate the photo 90 degrees.

As the resource mentions, you can only rotate your photos 90 degrees. For more details on how to edit your Portrait mode photos, click here: Edit Portrait mode photos on iPhone - Apple Support

We hope this information is useful. Thank you for using Apple Support Communities. Take care.