How to withdraw the verification code when the mobile phone mode enters the background?

It may be stuck. 1. Restarting the network may be caused by network delay or server communication delay, which makes it impossible to receive short messages. You can try to switch the flight mode and re-trigger the short message sending under the network. 2. Check whether the number is blocked. You can check whether it is set to block strange short messages and whether the number is blacklisted when harassing interception. If yes, please turn off the function of intercepting strange short messages and remove the number from the blacklist if necessary. Warm reminder: If your mobile phone enters the privacy space, the harassment interception function cannot be used normally. 3. If it is a mobile card and the enhanced information function is enabled, please switch to ordinary SMS. Please switch the enhanced information to the normal information interface: in the enhanced information chat interface, click the three points in the upper right corner > Switch to SMS/MMS. 4. Go to the developer options to check the relevant settings. Please go to Settings > System and Updates > Developer Options > In the application, turn off the Don't Keep Alive switch and set the Background Process Limit to Standard Limit. 5. Set the "Information" application that comes with the system as the default application (1). In order to protect your payment security and account security, the system prohibits third-party applications from obtaining the verification code SMS you received. It is recommended that you set the Information that came with your system as the default application and try again. (2) If you still need to use a third-party SMS application, please turn off the protection function of the verification code. Closing method: information > three points > settings > verification code security protection. 6. Check whether the number is saved in the privacy space. If you have ever created a privacy space, you can check whether there is any record of receiving text messages in the privacy space. If yes, please move the required contact to the main space. After the contact is moved to the main space, you can view the message in the main space. Warm reminder: Some mobile phones do not support privacy space, please refer to the actual support function of the mobile phone. 7. Restore the default settings. Please restore the information to the default settings and try again. The path is as follows: HarmonyOS system: information > four points >; Settings > four o'clock, and select to restore the default settings. EMUI 9。 X and above: information > three points > settings > three points, and select to restore the default settings. 8. Check whether the SIM card can receive the verification code when plugged into other mobile phones. Insert the SIM card into other mobile phones and check whether you can receive the verification code. If the phenomenon is consistent, it may be that the communication of the third-party server is delayed, resulting in the inability to receive the verification code message. It is recommended to contact the operator for handling. I hope I can help you.