Abnormal SMS interface.

1. Check the network status of the mobile phone. Check whether the cell phone signal is normal and stable. If the signal received by the mobile phone is weak, take the mobile phone to a place with good signal and get the SMS verification code again. At the same time, avoid frequently obtaining SMS verification code.

2. Check the entered mobile phone number. Check whether the entered mobile phone number is correct. If you enter it incorrectly, you will not receive the SMS verification code. At this time, correct your mobile phone number and get the SMS verification code again.

3. Avoid busy network periods. Network busy period is usually the peak period of network use such as commuting, holidays, system server upgrade (early morning hours). If you can't get SMS verification code within this time, please try again later.

4. Check the phone bill and SMS function. Call the operator's customer service phone to inquire about the phone bill balance information, and then select the manual service according to the voice prompt to check whether the SMS function on the operator side is normal. If the phone is in arrears, pay it in time; If the SMS function on the operator's side is off, ask why it is off and seek recovery.

5. Check the SMS function settings. Enter SMS settings and check whether the number of SMS center is set correctly (SMS center will not be able to send and receive SMS normally without correct number).