If you’re like most people, you probably have a lot of photos taken on your iPhone. But if you want to delete all of them, there are a few steps you can take to do so. First, open the Photos app and click on the three lines in the top left corner of the screen. This will show a list of all your photos. To delete one, just drag it off of the list and into the trash can under “Photos.” To delete all of them, just select them all and hit “Delete.”