Why is my phone saying invalid sim card??

[AC Question]

Ok I have a galaxy e5, I recently turned it off and left it in the car with my wife. Later on the way home I turn it on it says invalid sim card now. Phone works fine. I have no min on it now. I.belive we are on the same account, we have the same phones, is it possible she switched sim cards??

 

[person13628]

Did you like take it into a store and an employee switched sim cards? I really doubt she accidentally took it out and switched it.

I got that error once and it went away and never came back. Another possibility is you just need a new sim card.

 

[Rukbat]

Most carriers will replace a defective card for free - just bring the phone into your carrier.