I got S9+ from t-mobile on monthly plan. A month ago I paid up the full amount as I am planning to travel overseas for a month. I tried unlock app on the phone, but it did not work. Tried other carrier SIM, but that did not work either. T-mobile customer support asked me to factory reset and try UNLOCK app. The app failed - message 'unlock failed'. When I check IMIE # on Verizon and at&t website, it says not compatible with their network. Technical support asked to do factory reset and then try unlock. Nothing worked.
Made numeorus call to t-mobile support, result zero. I am to go overseas next week - not sure what I would do with a locked phone.
Best answer by gramps28View original