My zuk z2 voice is very low. What happened?

1. If the speaker sound is low, please refer to the following schemes and suggestions:

1. Please adjust the volume by the volume button first. It is recommended that you adjust and compare the audio when playing.

2. Please change the software or sound source played by the speaker. It is not excluded that the volume of the software or sound source you use is low;

3. If changing the software or the sound source is ineffective, please back up the data and try to restore the factory settings (please pay attention to backing up important data such as physical contacts and text messages, otherwise there is a risk of loss), and rule out whether the system is abnormal;

If it still can't be solved, you need to go to Lenovo's maintenance site to check and repair in time, and don't rule out the speaker failure. Please understand.

Second, if you feel that the other party's call volume is low during normal call, we suggest you try to solve it simply through the following situations and methods:

A, if it happens in the process of talking with individual contacts, it does not rule out the problem of the other party's mobile phone. It is recommended that you compare the call with other contacts and observe their usage;

B. If all contacts talk like this, please refer to the following methods to check and confirm:

1. During the call, you can adjust the volume through the volume button. It is recommended that you try to use the "Volume+"button to adjust.

2. Please check and confirm whether the receiver is covered properly. It is recommended to remove the membrane or replace it for testing.

3. If you can update the latest system version, you can back up the fuselage data to upgrade. At the same time, it is suggested that you can back up the fuselage data to prevent the risk of data loss, restore the factory settings, and observe the attempt.

If the problem still cannot be effectively solved, affecting your daily use, we suggest that you take the time to go to the nearby Lenovo authorized repair station for specific testing and treatment.