If you want to mirror a photo on your Android device, there are a few different ways to go about it. The easiest way is to use the Photos app. Open the Photos app and select the photo you want to mirror. Tap the three lines in the top left corner of the photo and select “Mirror.” If you want to mirror a group of photos, open the Photos app and select all of the photos you want to mirror. Tap on each photo and select “Mirror.” ..