What should I do if the itinerary card cannot be opened?

Solution to the problem that the itinerary card cannot be opened: 1. You can turn off the phone and restart it again. There may be some faults on the phone or software, so if it cannot be opened, you can turn off the phone and restart it again. Let the phone automatically connect to the network; 2. If the network signal is poor, you can refresh the network and open it again to solve the problem.