Generally, when the fingers are severely damaged, extremely dry, and extremely wet. There are also oil stains, water stains, a lot of sweat or a lot of dust on the finger or fingerprint collection area, which will cause the fingerprint to fail. It is recommended to take corresponding measures when using the fingerprint module in this situation.
Beijing IDWorld Technology Development Co., Ltd.
Address：10A, Block A, Jinyuan Times Business Center, Haidian District, Beijing, China