When your phone doesn’t recognize the SIM card, chances are that the SIM card might be dislodged, not compatible, or worst, damaged. There are also other instances where SIM card errors are triggered ...
The buzz around Reliance Jio hasn't gone yet with several users still trying to get their hands on a new Jio 4G card and failing miserably due to some stock issues at the Reliance Digital Store's end.