Unable to receive 9555 1 SMS verification code.

Unable to receive 9555 1 SMS verification code.

"For the problem of not receiving the verification code SMS, it may be caused by network delay or server communication delay. Please wait patiently for this question, select the countdown and try again. "

The reasons why SMS verification code cannot be received can be roughly divided into the following aspects:

First, corporate reasons.

1. When designing SMS verification code to send content, the content contains forbidden words.

2. The signature format of SMS verification code is incorrect or inconsistent with the signature submitted for filing.

3. The number of times of obtaining the enterprise SMS verification code exceeds the set range. In order to prevent theft, the company usually sets the number of times each number gets the verification code every day. For example, users with the same mobile phone number or the same IP address can send SMS verification code at most three times a day, twice an hour, and the effective time is 10-30 minutes. If it exceeds the set number of times, it will also fail.