The tone of Apple's mobile phone is gone.

The solution to the loss of key tone on Apple mobile phone is as follows:

1. First, click the settings of Apple's mobile phone.

2. Enter the setting interface and drop it down.

3. Find the sound bar in the settings.

4. In the penultimate line of the sound interface, there is a key tone bar. Slide the key to the right of the key tone to open it.

Extended data:

Tips to extend the life of iPhone battery;

1. Develop a good habit of charging.

When Apple's mobile phone prompts that the battery is low, charge it in time to avoid automatic shutdown due to low battery. If the battery efficiency is less than 80%, please try to replace the battery.

2. Upgrade to the latest version of iOS 14.

Apple has added a function called "Optimizing Battery Charging" to iOS 14, which can intelligently learn and judge users' usage and charging habits, so as to make the charging process more balanced, thus slowing down the aging of the battery and improving the battery life to a certain extent.

How to View: The function of "Optimizing Battery Charging" can be viewed in Settings-Battery-Battery Health ~

3. The background application refresh is prohibited.

Since iOS 7, applications can use battery life when running in the background, and it does. You can see how long the application has been running in the background. If the application runs out of power when not in use, you can disable background application refresh to prevent it from running in the background. If the application consumes too much power, we can also choose to uninstall it!

4. Enable low battery mode

IOS 9 has added a "low power mode" function, which can make the phone more power-saving. When the low battery mode is enabled, your screen will be slightly dimmed, limiting background processes, slightly slowing down the processor, or reducing the energy required by the device during normal use.

How to operate: The easiest way to enable this function is to slide down from the upper right corner of the iPhone, and then click the battery icon. It can also be set in >; Battery > enable low power mode in low power mode.

5. Turn off some app push.

You know, some push notifications, application notifications, email reading notifications and so on. These will shorten the battery life, so if you want to make the battery life of iPhone longer, you'd better turn it off. You can edit each application and turn off notifications in Settings.

For reference! Hope to adopt!