Huawei P9 Lite - Manual (Page 61)

Tips and Tricks
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Tips and Tricks
High volume mode
Press the volume up button repeatedly during a call to increase the call volume above the
usual maximum.
Searching for settings
Use the search feature in Settings to search for menu options.
Open Settings, and then touch the search box at the top of the screen and enter a
search term (such as Sound). Your phone will display the search results; touch an option
to access the corresponding setting.