Hikvision's after-sales service is really fucking poor, and Nanchang after-sales maintenance station is even worse.

Hikvision's service is really bad. I want to greet their ancestors for eight generations. What kind of after-sales service is this? No one answered the phone. After answering it, I stopped processing it, then gave a technical reply, and then it was gone. It will go on like this, no complaints, not even a complaint phone number. Bad Haikang, go out of business quickly.