Chosen Solution
I bought an iPhone 7 Plus with cracked screen when I put my SIM card at fist it works but 1 minute after the phone says no card sim I tried multiple times but the same problem appears
Plausible cause. -Carrier Locked -Damaged Sim Reader, really difficult especially with Phones. -Carrier Settings need to be updated. *Leave sim in unit, connect to wifi, go to Settings > General> About. This should trigger a carrier update, or simply updating the phone. -Check Settings > General > Scroll down to Profiles *Should be in the same area as VPN, and see if a profile from the previous user is interrupting the service (This is primarily dependent on your region/carrier service).
I work at an electronics repair store, most of the time the solution is either a new sim card, or reset network settings (you’ll have to reenter wifi passwords, but your phone will probably work, worth it).
How can i undo the carrier problem wen ever i put in the line it says invalid sim, ie tht the carrier is not meant for tht sim, what can I do about this I have an iphone 7
