The after-sales computer management system of ChinaSoft Tai Hao Hotel is too bad!

First of all, you have to figure out the problem of your door lock, and the general interface will not have problems for no reason. Generally, the door lock manufacturer upgraded the software version, which made the interface unusable. In this case, there must be a charge. However, it is definitely unreasonable to charge 20,000 yuan, because the interface software is generally not used in your family, and there is no problem of repeated development. In addition, there is no charge for debugging the interface when it is implemented. Just a few door lock manufacturers, basically, as soon as their door locks are upgraded, their interface programs come out. They are really killing people now. The original charge for changing data was 1000 ~ 2000, and now the starting price is 20,000, but this is related to the company's policy.