Iphone is saying my sim card is giving no services, invalid

Question

The iphone is saying the sim card is invalid, gives no service

Answer 1

Has your phone ever been jailbreaked? And have you updated to the latest iOS? If updated without preserving baseband then your unlock on your jailbreaked iPhone will be gone forever!!!

Your only other alternative will be to buy a gevy sim... This will help you unlock.

Answer 2

The message " SIM card is invalid" says that your phone is locked to your current Network provider. So, you need to unlock it . You can get unlocking service from your service provider/using unlocking software/from any of the online service providers like http://www.mobile-unlocker.com/apple-iphone/rs2wp9/  who provides Remote unlocking method to unlock it. It is more secure method and simple to use.