Mobile phone information Why can't I send a message when my mobile phone goes to other places?

In fact, if your mobile phone has no roaming function, even if you change the number of the information center, it won't work. There may be two reasons: first, your mobile phone does not support roaming function, for example, your mobile phone is a Shenzhouxing card. Second, because the network signal in your area is too busy, it is normal that short messages cannot be sent out for a while.