I bought My Iphone 7 before 4 days, the phone charge when he turned off, but if i charge it while the phone is on it stop charging after 10 mins. so i should unplug it and re-plug to continue charging and he charge for another 10 mins and repeat until fully charge.
using: Iphone 7.
Os: 10.2
Best Regards.
using: Iphone 7.
Os: 10.2
Best Regards.