Hello, new to this forum. - I recently moved into a home with an ADT security system. Part of this is an ADT NVR4204-P-ADT-2 Dahua hooked up to 4x exterior cameras. I do not want to use ADT but would like to reuse this NVR/CAM setup if possible. I do not have the admin password (prior owners do not either), there does not seem to be a reset button on the motherboard. I have tried "admin", "88888", "password", not working. Anyone have a solution to this?