IPhone6 does not recognize the SIM card reason:
1, the SIM card is installed correctly, if not installed well can be repeated several times to insert out;
2, SIM card damage, such as their own cut card that may be broken, this situation only change the card
3, IPhone6 itself problems, including settings, iOS system and mobile phone failure.
IPhone6 can not read the SIM card solution
Step One: Smart-phone reboots can sometimes solve a lot of problems. We plug the SIM card into that and we reboot the iphone and try again;
The second step: if the restart IPhone6 still can not identify the SIM card, shut down again, and then remove the card slot, check the SIM card is installed correctly, is not installed in place and so on.
IPhone6 uses the smallest size of the Nano SIM card, check the next card type, and then seriously reinstall the SIM card, after the completion of the boot try again.
All right, about the SIM card that's not recognizable. We're not going to be able to handle this. You can try it with the substitution method, other people's cards can be installed to identify, but may not be able to use some contract machine is bound to the card, but can identify that is your SIM card problem, if you can not estimate is the Apple hardware problem.