Huawei — after update sound through headphones reduced

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Mumbai City, Maharashtra, 400037

Hi,
I have updated my honor 7x with emui 8.0 on date 17th May 2018 however previous equalizer option from setting menu is not there anymore.

Also output from headphones have reduced which I believe because of missing equilizer.

This is creating trouble while listening to music or watching movie as I have to keep volume level more than risk limit in a way causing problem to ears.

Kidnly provide patch for solving this issue.

Regards