Apple sent my issue to engineering department and said i will receive a response from them 24 hours, and yet it has been one week. When i contacted them through the phone they treated me like sh1t. I have been using ultra mobile which is under Tmobile for 4 years with diff versions of iPhones, the senior advisor said Ultra(T-mobile) do not support any versions of iPhones, period. And I have told them my sim worked on any other qualcomm model.
First issue within 10 years anong 15 iPhones and 3 ipads, thats how they took care of their customer.