Samsung Galaxy S9 User Manual page 260

Appendix
Samsung Cloud does not work
• E nsure that you are connected to a network properly.
• D uring a Samsung Cloud's service check, you cannot use Samsung Cloud. Try again later.
The device does not recognise my irises from the locked screen
• E nsure that nothing obstructing the iris recognition camera and LED and try again.
• I f light conditions are very different from when you registered your irises, the device may
not recognise your irises. Move to another location and try again.
• E nsure that the device is not moving or tilted too much.
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