Custom-designed Features
29
Precautions for fingerprint recognition
Fingerprint recognition accuracy may decrease due to a number of
reasons. To maximise the 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 is 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 coin or key before scanning fingerprints to
remove static electricity.
Summary of Contents for LG-M400F
Page 1: ...ENGLISH MFL00000000 1 0 www lg com USER GUIDE LG M400F ...
Page 18: ...Custom designed Features 01 ...
Page 34: ...Basic Functions 02 ...
Page 36: ...Basic Functions 35 Parts overview ...
Page 68: ...Useful Apps 03 ...
Page 116: ...Phone Settings 04 ...
Page 121: ...Phone Settings 120 ...
Page 141: ...Appendix 05 ...
Page 152: ......