If you find that the trip card cannot be swiped, it is recommended that you first check if the distance to 20:00 is more than 4 hours, if it is more than that, immediately call someone else (anyone can do it, only roaming records are required), preferably for more than 3 minutes, and if it is not more than that, then try again on the next day. 5 calls on 1 day is the best, with an interval of an hour or an hour and a half, and with the first and the last calls more than 4 hours apart until 20:00 that day.

The pass big data card is based on the user's cell phone signaling data to provide location query service, with the Bluetooth location information is not much to do with the essence, that is, the cell phone operator has a signal in place can query the place that has been, but some areas if there is a cell phone signal value is weak or no signal will be biased, there may have been a place to go does not show this situation.

Note:

In order to make it more convenient for users to query and prove the anti-epidemic health status, the national integrated government service platform has now incorporated the communication big data trip card information into the anti-epidemic health information code service.

In the 14-day domestic and overseas trip declaration and query of the epidemic prevention and health information code, after the user declares the domestic cities and overseas countries (regions) that he or she has visited in the past 14 days, the system will verify the declared information with the data of the communication big data trip card, so as to avoid underreporting and misreporting.