Hi mates, i have this custumer who have a dvr no brand no labels on it, and i try to take the cmos battery off, but even that is not working,
i try the normal passcode: i have 2 user: admin AND 1
admin/admin
admin / 123456
admin / 888888
admin / 21086000
1 / 111111
1 / 123456
etc etc etc
any one know this model, and tell me what i have to do ??? please