Samsung SM-G960F User Manual page 260

Appendix
Direction lock
Create a directional combination to unlock the screen.
1
Launch the Settings app, tap Accessibility → Advanced settings → Direction lock, and
then tap the switch to activate it.
2
Drag your finger up, down, left, or right six to eight times, and then tap CONTINUE.
3
Draw the direction combination again to verify it and tap CONFIRM.
Installed services
View accessibility services installed on the device.
Launch the Settings app and tap Accessibility → Installed services.
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