Hi 
I have a qvis quattro 4bb, i did the stupid thing of not writing my changed admin password. 
have tried every password i usually use but no luck. 
  
i have got the master password if the date is reset but even if i take my cmos battery out the date dont reset? 
my date is currently set as 2017-12-30 
  
is there anyone on here who could possibly help me? 
  
thanks in advance