Not sure why you're being downvoted, you're correct and it's stated in the article that if you unlock with a passcode after 7 days the USB port begins to respon

Not sure why you're being downvoted, you're correct and it's stated in the article that if you unlock with a passcode after 7 days the USB port begins to respond again. Apple isn't going to design a feature that bricks a device after 7 days. It really simple: 1) No unlock for 7 days = USB turned off. 2) Unlock phone any time after 7 days (lets imagine unlocking at 12 days) and USB turns on. 3) Charging remains active at all times. Simple.