Re:iOS 11.4 to Disable USB Port After 7 Days: What It Means ...
by tobylane on Thursday May 10, 2018 @03:37AM
(#17037040)
If it's been seven days since you unlocked the phone you will need to enter the device passcode while connected to the device, the prompt coming up because you connected it.
Because the quote says "enter your device passcode while connected"
= the device has to be connected while entering the pin.