Recently I puchase samsung s22 ultra s908u and I paid Pta tax but my Pakistani sim are not work When I insert my sim card showing popup mck code I dont know what is my mck code I check AT&T website Insert my Imei number website says installment plan are not completed But I pay full payment with saler can anyone help me how I remove mck I dont Have extra money to pay installment and I dont know whats AT&T account purchase it when I check installment plan website ask me username and password I dont know what is user name and password
