HONOR 400 Pro
Deleting temporary data
When you use apps on your phone, various data is stored temporarily in the phone memory. If your phone runs out of memory, it may help deleting this data.
Press the settings icon.
Press Apps.
Press Manage apps.
Press the required app.
Press Storage.
Press Clear cache.
Slide your finger upwards starting from the bottom of the screen to return to the home screen.