I can't turn on the volume of a bell.

The volume of one plus ringtone can't be turned on. If your one plus ringtone can't be turned on, there may be the following reasons:

Volume key failure

Software problem

Hardware problem

How to solve the problem that the volume of a ringing tone cannot be turned on?

For different reasons, the following measures can be taken to solve the problem:

Check whether the volume key is faulty.

The failure of the volume key may be one of the reasons why the ringtone volume cannot be turned on. You can try pressing the volume button to see if there is any response. If there is no response, you can try to clean the volume button or replace it.

Check for software problems

Unable to turn on the ringtone volume may be caused by a software problem. You can try to restart your phone and see if you can solve the problem. If the restart doesn't work, you can try clearing the application cache or resetting the application preferences.

Check for hardware problems.

If the above two methods are ineffective, it may be caused by hardware problems. You can try to send your mobile phone to repair or replace the faulty parts.

If the volume of your ringtone can't be turned on, you can try the above methods to solve the problem. If the above methods are ineffective, it is recommended to contact customer service or professional maintenance personnel to solve the problem.