Same issue with so many m series phone even I am facing same issue from the last update and all service center have same answer problem with motherboard still I suggest please visit nearest service center

See here you can remotely unlock your phone using any other device

If you have enable find my device and remember your pin please use below link https://findmymobile.samsung.com/#home

please dont give such a stupid suggestion so many people.are facing same issue and what you people think we all dont know basic to connect cable and charger there is a issue in mobiles find solutions or call back all faulty set

even i have same issue please support