If there are contact pins, use a metal screwdriver or paperclip to bridge (short) the two pins together while powering on the unit.
Verify that the media port (usually 80, 8000, or 37777) is open and correctly configured in your mobile app settings. If you recently changed the DVR password at the box, you must update the password inside the device settings of your mobile app as well. dvr login password
This is one of the most common pain points for security system owners. Whether you use a Hikvision, Dahua, Lorex, Night Owl, or Zosi DVR, the password is the only thing standing between you and your footage. Losing it can feel like losing the keys to your digital safe. If there are contact pins, use a metal