The standby prompt tone appears frequently, but there is no information. What's the matter? The notices are all closed. What should be closed?

Hello, the message notification bar of the mobile phone is closed, and it will not be displayed when the message is pushed back, but there will be a prompt tone inside.

Because the mobile phone management software intercepts short messages, the short message number is intercepted in the blacklist of this software.

solution

Open the mobile phone management software to view the intercepted information, or add this number to the white list to avoid being intercepted.

Due to the limited storage space of the SIM card, the remaining short messages in the SIM card will be stored in other places in the mobile phone, such as the SD memory card of the mobile phone, and the displayed short message folder is in the memory of the mobile phone, so the short messages stored in the SD card cannot be seen.

Solution:

Clear useless short messages to ensure that the SIM card has enough storage space;

Enter "Mobile Phone Settings", change the information storage location to a memory card, and increase the number of stored information.

Cell phone poisoning or malicious plug-in.

Solution:

Use mobile phone management software to kill malicious plug-ins and trojans.

The last way is to restore the factory settings, that is, format the phone.