What should I do if the dynamic password verification of the upgrade college fails?

Check whether the input is correct, refresh the verification code or use the voice verification code, and check the network connection.

1. Check whether the input is correct: carefully check the entered dynamic password to ensure that no characters are typed wrong or omitted. Pay attention to case sensitivity and special characters to ensure accuracy.

2. Refresh the verification code or use the voice verification code: the verification code is found to be vague or illegible. Please try refreshing the page to get a new verification code picture. Voice verification option is provided, in which case you can choose to receive the verification code through voice prompt.

3. Check the network connection: the dynamic password verification information cannot be successfully obtained due to unstable network connection or weak signal. Please confirm that the equipment used is connected to a good and stable network, and the signal strength is sufficient for operation.