Why can't Unicom send text messages to mobile phone numbers?

If Unicom users send mobile phone messages to mobile users, the other party can't receive them, and it doesn't rule out the problem of the other party's mobile phone number or mobile phone settings. If Unicom number sends short messages to other mobile, Unicom and telecom users, it will not be able to send them normally. Do not rule out the problem of mobile phone card or mobile phone settings.

The correct number of the short message center of Henan Unicom mobile phone users is "+8613010761500", which can be set through the mobile phone function menu.

If there is something wrong with the mobile phone card, you can bring the original ID card to the counter of your hometown business hall to apply for a replacement card.