Fingerprint lock is an intelligent product, what should I do if I don't know how to operate it?

Recently, smart locks have become a hot topic in the lock market and have become a popular model on the internet. However, smart locks have not escaped the law of "popular right and wrong", such as excessive praise for consumption, overpriced locks, poor after-sales service, and other issues. As a result, the development of smart locks has not been as high as we expected, and data fluctuations have been leveling off, even tending to decline. In fact, in summary, there is a lack of communication. Sometimes when consumers encounter problems and do not receive timely relief or the desired solution, they will make up their own minds.