Samsung SM-G920F User Manual page 108

Applications
S Voice
Introduction
Perform various tasks simply by speaking.
Setting a wake-up command
You can launch S Voice using your own wake-up command.
When launching S Voice for the first time, tap START and set your own wake-up command.
→
To change the wake-up command, open the Apps screen and tap S Voice. Then, tap
Voice wake-up → Change wake-up command → Custom → START, and then follow the
on-screen instructions.
To set the device to launch S Voice using the wake-up command while the device is locked,
and tap the Wake up in secured lock switch to activate it.
tap
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