How to restore screen to normal size? A friend asked me to help fix her phone. She left it with her kid and they put it on safe mode.

I restarted it and it went into a smaller screen display like this.



(Tap to enlarge)

Without trying a factory reset anyone know how to resolve this?
My phone also has this feature. It is called one-handed operation. Go to Settings &rarr; Advanced Features. There you will find this option. Alternatively, you can search in settings.