Sim not valid
when i insert sim into my Iphone 6. it shows sim not valid. And don’t starts with no network. Do you any information about it ?
iPhone 6, iOS 12
That iPhone is locked to a specific cell service provider. If you don't know who it is locked with call AppleCare, give them the model and serial number and tell them you just want to know which carrier it is locked with. Then you will have to contact that carrier and ask them what their unlock policy is and if you qualify.