Taiyuan Unicom travel code can't receive QR code.

First, you may know that the network status of your equipment is not good enough, which leads to network failure, so you can't scan the boarding code. This is also the most common reason. If you need to verify, you can scan the code with someone else's mobile phone. What others can scan is your mobile phone.

Second, if others can't scan the code, it can be considered that the platform is out of order, and you can contact the platform for maintenance. Contact customer service for consultation.

Travel code is the code of communication big data travel card, which is also equivalent to health code. China Institute of Information and Communication, together with China Telecom, China Mobile and China Unicom, used mobile phones to receive data, which was obtained through the location of the base station where the users' mobile phones were located, providing free inquiry service for the 654.38+06 billion mobile phone users nationwide. Mobile phone users can query all the city information they have been to before 654.38+04 days through this service.