Huawei Honor 7 - What Can I Do to Successfully Unlock the Screen Even if My Fingers Are Dry

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3. Make sure the finger area you press against the fingerprint sensor is the same as that you
enrolled to your phone. It is recommended that you use the gesture you often use while you
are enrolling your fingerprint.
17.12.4 What can I do to successfully unlock the screen even if my
fingers are dry?
When your fingers are dry naturally, in dry seasons (autumn and winter) or areas (plateau
areas), during rest, or after you carry heavy objects, you may fail to unlock the screen using
your fingerprint.
Fingerprints can increase the friction between your finger and the object you want to grab. If
your fingerprint is too dry, the friction will decrease.
Solution:
1. Press your finger against the fingerprint sensor more strongly.
2. Keep your fingers moderately humid by blowing hot air to it or washing it.
17.12.5 What can I do to successfully unlock the screen even if my
fingers are wet or easy to sweat?
If your fingers are easy to sweat or still wet after you wash your hands, you may fail to unlock
the screen using your fingerprint.
To solve this problem: Wipe your fingers with tissues and ensure that your fingers are free of
water or sweat.
17.12.6 Why do people whose fingerprint patterns are shallow
often fail to unlock the screen using the fingerprint?
Females and children's fingers are slim and their fingerprint patterns are shallow.
1. Slim fingers may not be able to touch the edges of the fingerprint sensor, which may result
in incorrect fingerprint image collection. The edges of your phone's fingerprint sensor provide
a weak but stable electricity signal. When a finger touches the edges, the sensor generates
sensing capacitance on its surface to produce the fingerprint image. If the finger doesn't touch
the edges properly, the image quality may be poor.
2. Shallow fingerprint patterns may also cause fingerprint images with poor quality.
To solve this problem: Use the finger pad to cover the whole fingerprint sensor and its edges
to enroll clear and stable fingerprints.
17.12.7 Why does the fingerprint sensor often fail to recognize my
fingerprint and respond slowly when I'm unlocking the screen?
Circulation in your fingers will deteriorate when in high-altitude locations, when sedentary or
when lifting heavy objects, resulting in dry skin and therefore slight changes to the shape of
your fingerprint. Refer to the solutions for dry skin above, e.g. press slightly harder on the
fingerprint sensor and keep your skin moist by breathing onto your fingers or washing your
hands and then wiping them dry.