What is the reason for the failure of Yunnan health code certification?

If the health code is scanned, the platform authentication fails. The main reason is that there is a conflict in this program during scanning, so we can restart the phone. Then it will be scanned again. This is mainly because we have too many mobile phone applications. Under the premise of disordered data, especially the corresponding platform of healthy code scanning is not stable. So after the phone is restarted, most of this problem will be solved. If it is not solved, then change the code scanning method. For example, scan code from WeChat to Alipay.