No Service signal in Europe with ATT&T prepaid card, how to unlock it?
I have a german I phone 6s and a US prepaid card, and the phone cannot connect to any service. Do I have to unlock my phone number or anything? Or is there another option on how to get service in Germany with an US prepaid card?
I need my phone for work, and I will stay 4 weeks, which means that it is really important for me to have a phone with service signal.
Thank you in advance.