Why does the LeTV 2 phone suddenly have no sound?

This is a sound card system failure.

It is recommended to restart. If this is still the case, it can be solved by restoring factory settings.

1. First let the phone enter the flash mode. There are two ways to enter the flash mode. One is to enter the system while the phone is turned on! But we forgot the password lock of the phone! So this method No, that's the second method! That is, with the phone turned off, press and hold the "Power button" + "Volume +" button at the same time for about 3 seconds to enter the recovery flash mode interface.

2. When entering the flash mode interface, select Simplified Chinese mode (use the volume keys to select up and down, use the power key to confirm, there is a prompt at the bottom of the interface).

3. Enter Chinese mode, press the volume down key to move to the second item "Clear Data", and press the power key to confirm. Enter the clear data interface.

4. In the clear data interface, press the volume down key to move to the "Clear User Data" option, and press the power key to confirm. A prompt will appear asking if you are sure you want to clear the user data. This operation cannot restore the cloud. Select Confirm. The user data will be cleared in a few seconds or so. At this time, we will return to the main menu interface, and we can restart the phone. Flashing the machine is risky and requires caution.