Yiledui cannot receive verification code

1. The mobile phone number is entered incorrectly. When the user registers or binds the mobile phone number, the user will enter the wrong mobile phone number, resulting in the verification code not being sent to the correct mobile phone.

2. The mobile phone signal is unstable. If the signal in the area where the user is located is unstable, it may cause the mobile phone to be unable to receive the verification code text message.

3. SMS channel failure. If Yiledui’s SMS channel fails, the verification code may not be sent to the user’s mobile phone.