Unicom card can talk normally, but SMS can't connect to the network? How to solve it before?

If "unable to connect to the network" means that the mobile phone can't surf the Internet normally, please check the following:

1. Confirm whether there is a network. It is recommended to use it where the signal is strong.

2. Check whether there is any phone bill in the account. If the balance is insufficient, it needs to be recharged before it can be used;

3. Confirm whether the parameters of the mobile phone have been set. Please contact manual customer service for details.

4. Check whether the USIM card is inserted. If it is plugged in, but it still doesn't work, it is recommended to go to the local Unicom's own business hall to check whether the USIM card is faulty or not.

5. Check whether there is anything wrong with the mobile phone. It is recommended to change the machine for testing.

Eliminating the above situation did not solve the problem. It is recommended to contact local manual customer service for handling.