why does my ipad show invalid sim?
I had my ipad replaced at the Apple store with a new one and now it show Invalid SIM in the top right corner where it used to show my Carrier. Do you know why and how I can fix this?
iOS 6
You need to bring it back to the carrier maybe and have it reactivated. Apple replaced it but if your on certain accounts for the iPad like a pay plan of some sort, they cannot activate that, they don't have access. If you have a card or paperwork with the plan info you are on, go to settings, cell data and input there.