Is Tianjin Digital Epidemic Prevention app Healthy? Why not?

1. Try to exit Tianjin Digital Epidemic Prevention app first, reopen it and get the verification code again.

2. Secondly, if the error still occurs, you can try to change the network. Connect to a 4G network or WLAN and turn on the health code.

3. Finally, turn off the used wireless network, use mobile phone data to operate, turn on the flight mode for three seconds, then turn off the flight mode and refresh the ip before operating.