Huawei Technologies Co. Ltd EVA-LX9 사용자 설명서

Touch 

.

You can quickly scan your 
phone for potential risks with 
one touch. Follow the 
onscreen instructions to use 
one-touch optimization, or 
manually clean the system 
storage and manage your 
applications.

Touch the options on the 
screen to clean your system 
trash, set the harassment 
filter, activate power saving 
mode, manage your 
applications' notification 
permissions, and more.