Restoring Default Settings; Changing An Existing Hardware Password; Limitations - Lenovo ThinkPad T500 User Manual

Restoring default settings

To restore default BIOS settings, use the Lenovo_LoadDefaultSettings class, then
use the Lenovo_SaveBiosSettings class to save the BIOS changes (see sample
scripts).

Changing an existing hardware password

To update a password, specify a password type and format the password. The
format for password parameters is "pop,abc,def,ascii,us" with descriptions in
Table 5 (see "Set a supervisor password on the local computer when a supervisor
password exists" on page 18 and "Set a supervisor password on a remote
computer when a supervisor password exists" on page 18 for sample scripts).
Table 5. Password parameters format, changing existing hardware password
Parameter Description
Parameter 1 Password type string
Parameter 2 Current password string
Parameter 3 New password string
Parameter 4 Password encoding
Parameter 5 Keyboard languages

Limitations

The following WMI limitations exist for BIOS setup:
v BIOS settings cannot be changed at the same boot as power-on passwords (POP)
v A password cannot be set using this method when one does not already exist.
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Lenovo BIOS Windows Management Instrumentation Interface Deployment Guide
and hard disk passwords (HDP). If you want to change BIOS settings and POP
or HDP, you must reboot the system after changing one of them.
Passwords can only be updated or cleared.
Possible selections
v "pap": Supervisor
v "POP": Power-on
v "uhdp1": User HDP 1
v "mhdp1": Master HDP 1
v "uhdp2": User HDP 2
v "mhdp2": Master HDP 2
v "uhdp3": User HDP 3
v "mhdp3": Master HDP 3
v "abc" - raw ascii character
v "1e302e" - scancode
v Raw ascii "def"
Scan code "201221"
v
v "ascii"
v "scancode"
v "us" - English US, English UK,
Chinese-Traditional, Danish, Dutch,
French-Canadian, Italian, Japanese, Korean,
Norwegian, Polish, Portuguese,
Spanish-European, Spanish-Latin American,
Swiss, Turkish
v "fr" - French-European, Belgian
v "gr" - German, Czech, Slovak, Slovenian