Hello, could you please tell me if bad connection can be cause by SIM card? The reason for my question cause I can not make or receive phone calls in my own house and outside of my house too, even when my spouse next to me he can not get my phone calls and can not call me also, cause he got no signals and it just drop to try to get trough…. Today I was going to call settings and the system gave me MG “Network or SIM card error.” What can you recommend me to do? It’s very frustrating to have a phone, pay for the services, and not able to connect to very important calls…
Please, help!