My China Unicom SIM card cannot send and receive text messages and it shows that the SIM card is busy. What should I do?

My China Unicom SIM card cannot send and receive text messages and it shows that the SIM card is busy. What should I do?

If it prompts "SIM card busy" when sending a message, you can check the following conditions:

1. Check whether the SMS inbox and sending box are full. If they are full, it is recommended to delete some SMS.

2. You can try changing your phone or restarting your phone.

If the above situation is still not resolved, it is not ruled out that the SIM card is damaged. It is recommended that you go to the local business office to replace the card.

If you have any other questions, you can also consult local customer service. My phone can make and receive calls normally but cannot send and receive text messages. It says that the SIM card is busy. How can I solve this problem?

You can go to the business hall and ask the customer service lady to restart your SIM card. The mobile phone card cannot send and receive text messages

If other mobile phone cards are placed in the mobile phone normally, then there will be no problem with the mobile phone. It may be you. The mobile phone card does not have the SMS function enabled. In this case, you can dial 10010 to enable the SMS function for you. If there is a problem with your mobile phone card directly, in this case you will have to replace the card. What should I do if my nokia 7610 cannot send text messages after changing the SIM card?

Reset the short message center and China Unicom cannot send and receive text messages.

If the phone cannot receive and receive text messages, try restarting or changing the phone. Carry out a test and check whether the following conditions exist: 1. The SMS center number is set incorrectly; 2. There is no signal or the mobile phone battery is low; 3. The system is busy due to peak SMS sending volume during holidays. It is recommended to try again later or avoid sending. Peak period; 4. The sending format is incorrect. If sending a text message to a PHS user, the area code must be added before the number; 5. The SMS sending function is blocked on the mobile phone; 6. Being included in the SMS blacklist; 7. The number balance is insufficient; 8. The SMS inbox and sending box are full; 9. Check whether the SMS function is activated. If the above situation is eliminated and the problem is still unresolved, it is recommended that you contact the manual customer service at the place of residence to handle it.

The mobile phone cannot send and receive text messages

Restore factory settings. Can the mobile sim card only retain the function of sending and receiving text messages?

No, unless your mobile phone has this function, the SIM card can send and receive text messages but cannot make incoming calls

Have you set the call restriction to ban all incoming calls? Have you changed your mobile phone? If it doesn’t work, it’s a problem with the SIM card. If the SIM card can’t make calls, it’s only possible if the SIM card is restricted. Try unblocking all incoming calls. If you plug in the telecom version of the SIM card, you can’t see the contacts! It shows that the SIM card is not activated but you can make calls and send and receive text messages normally

Hello.

Open the phone book of the phone, then click the menu button on the bottom of the phone, select the SIM card contacts, and select Import. How can the SIM card of the phone be connected to the computer and send and receive text messages through the computer.

Connect to computer via mobile phone.