What should I do if I can't send Samsung E 120L SMS?

Dear Samsung users, according to your description, you are not asking about the models sold in Chinese mainland. If the mobile phone can't send short messages, I suggest you: 1. Check whether the phone bill is sufficient. 2. Check whether the information center number is entered correctly: Information-Menu-Settings-SMS Settings-Information Center-Set the information center number (please contact the local network operator for the information center number). 3. Check whether there is virus software in the mobile phone. Check mode: Settings-Application Manager-Run-Check whether there is a Com.android.version process running. If there is this program, please uninstall, delete and restart the phone. 4. Try to replace another SIM card. 5. Check whether the machine has a firmware/system update push notification. If yes, please upgrade your phone to the latest version. 6. If it is invalid, please back up data (contacts, multimedia files, etc.). ) and restore the machine to factory settings. (Note: Please back up the relevant materials before updating the version or restoring the factory, so as not to affect the use. If the problem still exists, I suggest you take the purchase invoice and warranty card and send your mobile phone to the nearest Samsung service center for testing. If you have any comments, suggestions and comments, please click: support.samsung.com.cn/survey.