SIM Card Removed Error in Samsung Galaxy S4 [Fixed]
Sim Initialization Failure Samsung Galaxy S4 users sometimes receive an error message “The mobile network will be unavailable until you restart with a valid SIM card inserted”. Another variant of the error is “A SIM card is needed to operate this phone. Please turn off… Read More
![SIM Card Removed Error in Samsung Galaxy S4 [Fixed]](https://i1.wp.com/techget.net/wp-content/uploads/2015/02/SIM-Card-Removed.png?resize=210%2C158)