Huawei P10 - Manual (Page 150)

Select an item: Touch an item with one finger to select it (it will not open). Your phone will read
out the content of the selected item.
Open an item: Double touch any part of the screen using one finger to confirm your selection
from the previous step.
For example, if you want to open Settings, touch the Settings icon once using one finger, and
then touch twice on any part of the screen.
Configuring the TalkBack settings
1
Open Settings.
2
Touch Advanced settings > Accessibility > TalkBack > .
3
Follow the onscreen instructions to adjust the feedback volume, audible feedback settings,
control gestures, and more.
System Features and Settings
144