Samsung c7, why hasn't the news been ringing?

The mobile phone often has a prompt tone. I suggest you:

1. Check whether the battery of the mobile phone is sufficient. When the battery of the mobile phone is low, there will be an alarm prompt. It is recommended to observe after charging.

2. On the standby interface, slide down the curtain at the top of the screen to see if there is any new information notification in the notification bar.

3. Try to shut down and restart.

4. If not, please back up the data in your mobile phone and restore the factory settings.

If the problem still exists, please take the purchase invoice, maintenance card and machine to Samsung service center for inspection by engineers.