I have inserted my memory card in samaung j5...but it says that there is no memory card inserted.Why?

[sumitashanmugam]

I have inserted my memory card in samaung j5...but it says that there is no memory card inserted.Why?

 

[webworkings]

There is something wrong with the device (port, etc), it is a bad card, or the card is of a size or type that the phone can't access.