Do you know why I would I keep getting an Invalid SIMS card message on my Galaxy Grand Prime?

[AC Question]

Do you know why I would I keep getting an Invalid SIMS card message on my Galaxy Grand Prime? I had my first Galaxy Grand Prime for 8 weeks and the Invalid SIMS card thing happened 6 times in that 8 weeks. Straightalk eventually replaced my phone. I just got my replacement last Thursday evening, set it up Friday and Saturday evening it happened again.

 

[Golfdriver97]

Welcome to the forums. Perhaps it is an APN setting that isn't correct?

 

[Mike Irish]

Do you know why I would I keep getting an Invalid SIMS card message on my Galaxy Grand Prime? I had my first Galaxy Grand Prime for 8 weeks and the Invalid SIMS card thing happened 6 times in that 8 weeks. Straightalk eventually replaced my phone. I just got my replacement last Thursday evening, set it up Friday and Saturday evening it happened again.

 

[Mike Irish]

I'm having the same exact problem with the Galaxy prime as well. I just replaced my third SIM card and once again saying invalid. The phone works for maybe a day