Why is the received verification code message blank?

First, the number of acquisitions has reached the upper limit:

Each platform has a limit on the number of times each mobile phone number can get verification code every day. For example, an APP platform limits the number of times each mobile phone can get verification code to 10 times a day. If you have 10 times today, you can't get the verification code no matter how hot it is!

Solution: Only wait until the next day to try again!

Second, the mobile phone number itself does not support the carrier business in the current area.

At present, basically all Internet platforms support the three major operators, but the mobile phone numbers in Tibet, Xinjiang, Hong Kong, Macao and Taiwan and overseas may be restricted by the current regional operators, resulting in the inability to handle business normally!

Solution: if you have to get the verification code, you have to change your mobile phone number; Of course, there are also the following special cases: some users with number portability will temporarily be unable to receive third-party short messages because the data interface is not synchronized in time. In this case, they have to call the corresponding platform or operator!

Third, SMS is intercepted by mobile phone security software.

This is also very common. SMS messages on many platforms will be intercepted by the security software that comes with the mobile phone or the third-party security software that we installed ourselves, which makes it impossible for us to directly see the obtained verification code!