Why the itinerary code cannot be displayed?

Brand model: Huawei P50

System: HarmonyOS3

Software version: WeChat 8.0.22

1. The itinerary code cannot be displayed because the user's network signal is not good, causing the itinerary card system to fail to operate normally. Solution: The user can refresh the network and reopen it.

2. The itinerary code cannot be displayed because the mobile phone traffic is not turned on, or it is not connected to the network; Solution: The user needs to turn on the phone's traffic function, or connect to wireless.

3. The itinerary code cannot be displayed because there are too many people visiting and the system crashes; Solution: Users can wait patiently for the official fix.

4. The itinerary code cannot be displayed because the positioning in the user's mobile phone is not turned on, so detailed information cannot be obtained; Solution: The user needs to turn on the positioning in the mobile phone.