triumph.prog

A friend donated this DVR system I am trying to install for my complex. He cannot recall the admin password. I've taken the battery out but no luck with the default admin password, which is a blank string. The sticker says: Model: 8606HA Digital Video Recorder System H.264 Video Compression SYSTEM: PAL POWER: 12V 2A 2013072500089l Would anyone be able to identify and assist me with gaining admin access? Help would be greatly appreciated