A number of reports have indicated that iOS 12 could have a bug that causes periodic and random issues with devices not charging when plugged in to a power source, or placed on a wireless charging pad without user interaction.
Approximately 108 users have comments on the issue with either the iPhone XS and iOS 12. The fault seems to occur when the user connects a Lightning cable to the charge port using a common wall charger, or place the device on a Qi charging pad.
Granted, most of the time, the iPhone functions normally, and immediately begins charging once the contact has been made.
On occasion, some users won’t get a charge symbol, nor hear the tone that indicates when the device has begun charging. Some users were able to get the phone to begin to charge by plugging it in, waiting between 10 and 15 seconds, and waking the phone —but not necessarily unlocking it.
“If i haven’t interacted with the phone for some time, it becomes unresponsive to a charger being plugged in,” said one user. “But if I unplug then lift it and start using it, it will recognize the charger.”
The issue could be software-based as well, as the problem has manifested in an iPhone 7 and a 12.9-inch first-ten iPad Pro when tested recently.
The issue may be related to USB restricted mode, a feature that Apple developed to help secure data on the phone against devices that try and download a phone’s data for law enforcement or nefarious purposes. USB restricted mode shouldn’t be interfering with a simple wall charger, but the interaction that users are noticing, lifting the phone in order to get it to charge after it’s been left idle, seems related to the need to unlock a device to get it to connect to a peripheral through Lightning.
It’s unknown as to wherein the exact source of the issue surfaces from.
Stay tuned for additional details as they become available.
Via AppleInsider and discussions.apple.com