Reading fingerprints is a very useful one mode when it works properly.
However in some cases, placing the fingers on sensor can be a difficult task, for example for people performing manual labor.
In addition, if you are someone who works with hands, there is a high probability that your hands are not always clean. The various residues on the fingers can confuse the reading which will not unlock with your touch.
So what can you do to avoid the above problems;
First prefer your middle finger for the fingerprint. It may seem awkward at first, but the media is less used than our indicators and the chances of it getting dirty are lower. They are also still one of our most skillful fingers.
Another trick that can work well is to use the same finger several times over a period of time. This way, the device learns to read your fingerprint even if it has scratches and scars.
This is useful for those who do not want to change the finger they use to unlock it smartphone their.
Also, instead of using the front of your fingers, use the sides, especially the thumb.
This practice works best on a smartphone with fingerprint readers on the side.
Enter your fingerprint in system the way you hold or use the device more often. Use the device for a few days to find out how it suits you best. This way you will always be accurate and you will have no difficulty unlocking your device.