The big data travel card is updated every 14 days. Because the travel calculation of the first 14 days is completed in the background of the operator, there will be a one-day delay. In addition, the data will be updated after arriving in a new city for 4 hours, and the stay time will not exceed 4 hours and will not be recorded.
1. The travel calculation of 14 days before the user is completed in the background of the operator, resulting in a one-day delay. For example, on March 5th, the travel data before March 4th 14 days (between February 20th and March 4th) was calculated.
2. Because the service uses base station data, in order to ensure continuous communication and achieve no blind area coverage, the base station signals at the junction of administrative divisions may cross-cover, resulting in deviation of the results, so it can be adjusted according to other certificates.
In addition, staying in a city for less than 4 hours will not be recorded. Overseas travel records that require international roaming service during going abroad. If the data results are seriously deviated, you can contact customer service in time.