I tried searching but couldn't find any information on this. I read that when your are charging your phone and/or when it is completely charged the lightning picture will appear, but it doesn't do that on mine.
Sometimes the picture will randomly appear for a second at odd times, but that is about it for me.
The only lightning while charging is the lightning bolt that is on the battery indicator. The storm lightning picture is just a quirk that sometimes happens with the phone. You are not supposed to see that picture
