I Remove and stay only alarm. But the same only 10 seconds is pre recording. I tried reset and start again. The first camera worked. But the next not and the first don't work too . I need a solution or I need change my brand. I send email to dahua but they don't care.
Hello, i bouth camera with alarm in and put a button, and set in my NVR when press button pre record 30 seconds , but when i gonna watch , only 10 seconds or less pre recorded.
Sorry my english