Hi guys,

I have a Samsung galaxy s4 lte 9505, phone is been working perfectly till last few weeks Im getting this annoying error:

SIM card removed The mobile network will be unavailable until you restart with a valid SIM card inserted

Ive tried to find a solution but is pretty confusing out there, some people says is hardware issue and others says is software. I did change my sim already and did an hard reset twice...Any help or tips would be so much appreciated