Cool god f 1 SMS always fails. What happened?

Hello! Welcome to Cool Enterprise Platform.

Hello, landlord! It is recommended to try the following exclusion order:

1, please confirm whether the SMS function is normal and whether all numbers can't send and receive SMS;

2. Please confirm the number of the SMS center with the operator and check whether the center number is correct;

3. Uninstall the SMS software downloaded by the mobile phone and cancel the blacklist setting;

4. Try to change the card;

5. After the mobile phone data is backed up, the latest version upgrade can be detected through wireless upgrade (system update, wireless upgrade) or the mobile phone is restored to factory settings;

6. You can take your mobile phone and relevant vouchers to the maintenance outlets for testing by professional engineers. If you have any questions, you can log in to Coolpad official website (www.coolpad.cn) Service Center and click online customer service consultation.

Thank you for your support of Coolpad products. Welcome to Cool Enterprise Platform again.

Wish you a happy life!