"How can I solve this issue in iPhone ""Your sim card played a tone"" (I have tried putting off location based iads but it didn't solve my problem)?"
I own an iPhone 5s 32GB purchased 2 months ago in the UAE. For the past 2 days, I've been facing a problem where the SIM card is shown as INVALID. What might be the reason for this? What should I do to solve this issue?