What does the lightning bolt symbol on iPhone mean?
I cannot find a definitive answer anywhere: What does the lightning bolt symbol on iPhone mean?
More specifically, my iPhone battery is dead and sometimes the battery symbol shows up WITH the lighning bolt and the battery symbol above it with a small amount of red. If I jiggle the connection cable the lighning bolt disappears, then reappears, but the low battery symbol is always present. So my question is specifically what is the difference? What does the lightning bolt mean? Why has Apple made it so cryptic? Sometimes the lightning bolt, sometimes not, which one means charging? Both? Why have it then?
You see, I don't know whether to jiggle the cable until the lightning bolt is NOT visible, or whether to jiggle it so that it IS visible. Which one means the phone is charging. Why have a symbol that is open to interpretation but have no icon legend/reference anywhere that a user can know what it means? Why have this symbol when it is just as easy to have plain text "charging" or "not charging"?
OS X Yosemite (10.10), null