Unable to receive SMS from Nokia 5230 system.

Your question is a bit general. There are several reasons for not receiving SMS, mainly in the following aspects:

First, the SMS channel is blocked! Due to sending and receiving a large number of short messages in a short time, the server is heavily loaded, and this situation will have to be sent and received later!

Second, your 5230 has installed SMS interception software similar to Security Management 360! In this case, you open the interception records of these security software to find out!

Third, it is the problem that often appears on my 5630 mobile phone. It seems that many Nokia phones are like this! Open the communication record and see that I have received a short message, but it is not in the inbox! I have often encountered this problem before, but I really don't know what to do at the moment, which often causes SMS delay! It will take a few minutes to see it! If this is the case, I suggest you send a message casually, such as 10086, and then the original message will be sent with the latest one!

I wrote the mobile phone! Pursue the principle of originality and hope not to be pirated by others!