Solved! note 3 network prombal

Solution
If there is something wrong with the SIM (not an SD card but a SIM card) then you would need to contact your carrier/service provider and ask them to send you a new SIM.

Now if it is actually a SD card and not a SIM that you are referring to, then you would need to determine if it is the SD card or the port where you connect it that is the problem.
If there is something wrong with the SIM (not an SD card but a SIM card) then you would need to contact your carrier/service provider and ask them to send you a new SIM.

Now if it is actually a SD card and not a SIM that you are referring to, then you would need to determine if it is the SD card or the port where you connect it that is the problem.
 
Solution