Why Does My Phone Say Invalid Sim Card Android. Why Network Locked SIM card Inserted error message. If you are still receiving the invalid SIM card message after the unlock request it could be the SIM card causing the issue.
If you see this message on your phone then there are two possible reasons why the SIM card decided to show an invalid SIM error. Why Does It Say Invalid SIM Card Network Locked SIM Card Inserted. And ask them for the status of your account and your phone.
Enable Dual SIM always on.
Make sure that its enabled. If the SIM card is not programmed properly damaged or removed it prevents operation of the intended device. Hello this problem causes when sim card slot doesnt registered in Network my advice is call your network administration for sim card registration. In other words no matter why and how you get such android phone SIM card issues it must have some connections with your inserted SIM card.
