To unzoom an iPhone screen that is zoomed in:
- Use three fingers to double-tap the screen. This gesture toggles the Zoom mode on and off, so double-tapping with three fingers should return the screen to normal zoom level.
- If double-tapping doesn't work, try triple-tapping with three fingers to bring up the Zoom menu, then use the slider to zoom out.
- If the screen is stuck zoomed in and you can't navigate, perform a force restart: quickly press and release Volume Up, then Volume Down, then press and hold the power button until the Apple logo appears.
- After unzooming, go to Settings > Accessibility > Zoom and toggle the Zoom feature off to prevent it from activating accidentally again.
These steps should help effectively unzoom the iPhone screen and disable the zoom feature if desired.