good evening friends, I'm desperate, can anyone help me? I have tried several master password softwares and none works, I have a DVR vision centurion, with a processor hi 3520, mother board HS-TVI-B3520DH-4, I forgot my password, I can not find anything that helps, can anyone here help me ??? ??? Sorry for the errors, I live in Brazil, I'm using a translator. thank you all.