My friend sent me a text message, but I didn't receive it. He said I replied. What happened?

Sometimes too many people send text messages, and the information will not be received. This usually happens during holidays; Sometimes this happens when people are not on the same network (for example, when the mobile is connected to China Unicom and linked to telecommunications, the information will be sent out, but it will be delayed or not received); Also, his mobile phone is in arrears, so he can only answer the phone, not send messages by phone. He doesn't know it himself, and sending a text message will be considered a success (I have done such an oolong thing, hehe); Another is that he didn't send you a message.

You can pull up his phone list, so that you can know whether he sent you a message. This is the simplest, but it involves personal privacy. I still don't recommend you to do this, hehe.