Sometimes, even though my charger is plugged in, it does not light up and my computer does not sense that it is charging. I then simply remove the charger from my computer and plug it back in. I do not do anything else, and plug it in immediately after unplugging it. Then all of a sudden it starts charging again. 1) What do you think the problem is? 2) Should I take it in to the Apple store? 3) I took a video on my iPhone. It clearly shows the issue. My phone is jailbroken though. Would showing my phone to the apple store people be an issue? Thanks!