China Mobile can't receive the verification code for changing the package.

The reasons why China Mobile can't receive the change package verification code are as follows.

1, SMS storage is full. The short message storage capacity of mobile phone is limited. If the received SMS is not cleared in time, the subsequent SMS will not be received. Please delete the message and try again.

2. If the mobile phone is not turned on for a long time or the signal is not good for a long time, the sent SMS will expire. Try somewhere else (the validity time of the verification string is: 20 minutes).

3. It is related to the local gateway. In some time periods, the local SMS center is busy because of the large number of SMS messages, and SMS messages may be affected, delayed or lost. You can try again at another time later.