Night Owl Optics 4BL User Manual

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User’s Manual 
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5.2.13.6 System Maintenance   
 
Click “Main Menu” 
 “System”  “Advanced”  
“Maintain” to access the SYSTEM MAINTENANCE page 
of your DVR. This option allows you reset the DVR to 
factory default settings, update system software 
(firmware), and set system auto reboot time.   
When enabling the auto-reboot function, you can setup 
system to restart regularly to clear up some temporary 
storage memory. 
 
 
 
5.2.13.7 Info. 
 
Click “Main Menu” 
 “System”  “Advanced”  “Info” to 
access the system information of your DVR. 
 
 
5.3 Lock 
Click “Lock” of the pop-up menu to activate password protection of your DVR.    All menu will be 
locked until the correct username and password is entered.