When the phone flashes, there is no text message.

You can try the operation in the following ways:

1. Enter Settings-Status Bar and Notification-Information-Turn on all functions of notification permission.

2. Have you ever used a third-party SMS software? If you have used the third-party SMS software, you can open all the permissions of this software (trust this software in My Manager-Software Management-Software Permission Management), or uninstall it directly and use your own SMS software.

3. In Settings-More Settings-Restore Factory Settings-Restore All Settings (this operation will not clear the data in the phone).

4. To upgrade the mobile phone to the latest version, you can enter Settings-System Upgrade-Check for updates, download the upgrade package according to the prompts, and click Download and Install, and the mobile phone will restart and automatically enter the upgrade mode.

If the above methods still can't be solved, it is recommended that you take your mobile phone, valid purchase invoice and warranty card to our local after-sales service center for testing and processing.

Note: You can query the local after-sales address in vivo official website-Service-Service Network-Select Province and City-Query, or in mobile phone settings-More settings-After-sales service.