Hello, I not speak your language by default but i am asking for help here, have you discover a way to reset password of NVR? I have access to serial by root/xc12345 but no use, nothing there. No config file... Help? Later next day, For everyone who is in previous situation, resseting the HiLinux system is in data file, for this i have apply the files in atach. First Hi3520d_Autoupdate.bin and Hi3520d_Data on USB falsh. Power on and the U-Boot will do the job. Passw is in *Data* After this update with Hi3520d_update V6. Mult succes!!!
AutoUpdate.bin