If the switch next to StandBy is in the gray OFF position, tap it to turn it to the green ON position, then try charging your ‌iPhone‌ again in the required orientation. If StandBy mode turns ...

Keep the phone stationary and press the side button to activate StandBy. Once activated, swipe left and right to switch between the ... Turn StandBy off by heading to settings and then look ...

where the toggle switch for it can be found under StandBy. If you find that StandBy is more annoying than helpful, you can also turn it off from here, but Apple has done an excellent job of ...