Xiaomi 2 is on the phone. What's the matter with no sound on the phone by SMS?

Please try it according to the following two points:

1. Please back up the data first (create a new backup by opening the system and security ~ backup ~. ), then, enter the recovery mode, clear the cache, clear the user data, clear all data, and do not restore the settings and third-party security software in the mobile phone when restoring the backup. Try to use it normally.

2. If it still doesn't work, I suggest you brush the whole package again with a line brush according to the following method. You can refer to the following brushing tutorial:

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D. If you are not familiar with brushing, you can refer to the brushing video tutorial made of rice flour:/v _ show/id _ xnteymjq1mzi4.html.