Clearing The Password Check And Bios Password; Clearing Bios Passwords - Acer Aspire V3-551 Service Manual

Clearing the Password Check and BIOS Password

Clearing the Password Check
The password check can be removed by shorting the "RTC_RST" point with a metal instrument.
Remove the lower cover door and the memory module (refer to
1.
Remove the battery (refer to
2.
Under the memory module slots, locate the CMOS jumper.
3.
Use an electronic conductivity tool to bridge the two points of the jumper.
4.

Clearing BIOS Passwords

To clear the User or Supervisor password, perform the following:
At the command prompt, type clnpwd.exe. The Clean Password Utility is shown.
1.
Press 1 or 2 to clear the desired password shown on the screen.
2.
The screen displays function success or failure.
3.
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System Utilities
Figure 2:29. CMOS Jumper
d:\Clnpwd>clnpwd
ACER Clean Password Utility V 1.00
Press 1or 2 to clean any password shown as below
1.User Password
2.Supervisor Password
Clen User Password Successfully!
Figure 2:30. Clean BIOS Password
d:\Clnpwd>clnpwd
ACER Clean Password Utility V 1.00
Press 1or 2 to clean any password shown as below
1.User Password
2.Supervisor Password
Clen User Password Successfully!
1
Clen User Password Successfully!
d:\Clnpwd>
Figure 2:31. Clean Result
System Utilities
on page 2-2).
on page 2-2).
System Utilities