Chosen Solution

Hello everyone, I just bought a second-hand phone, replaced its screen and started to work with it. I was told that the locking of the phone is unknown. I bought the device from UK, i’m not living there. When i putted my sim in, first it showed “no service” so i guessed it is locked but when i’m “playing” with the network options sometimes it recognizes my sim and there is a service and i can make calls! When i’m making calls (i was succedded to talk with a friend about a hour) the service is not disconnecting but few seconds after the call ends it may show “no service” again. i have no idea what its problem. I would be glad of help with that issue. Best Regards

It is possible you have a wrong setting active. Make sure data is ON Wi-fi calls OFF This may help… Or try to update all firmware and software as well as service area