LG G5 User Manual page 315

Precautions for fingerprint recognition
Fingerprint recognition accuracy may decrease. To maximise
recognition accuracy, check the following before using the device.
• The device's Power/Lock key has a fingerprint sensor. Ensure that
the Power/Lock key is not damaged by a metallic object, such as
coin or key.
• When water, dust or other foreign substance are on the Power/
Lock key or your finger, the fingerprint registration or recognition
may not work. Clean and dry your finger before having the
fingerprint recognised.
• A fingerprint may not be recognised properly if the surface of your
finger has a scar or is not smooth due to being soaked in water.
• If you bend your finger or use the fingertip only, your fingerprint
may not be recognised. Make sure that your finger covers the entire
surface of the Power/Lock key.
• Scan only one finger for each registration. Scanning more than one
finger may affect fingerprint registration and recognition.
• The device may generate static electricity if the surrounding air
is dry. If the surrounding air is dry, avoid scanning fingerprints,
or touch a metallic object such as a coin or key before scanning
fingerprints to remove static electricity.
Custom-designed Features 30