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- compaq 420 needs BIos administrator password

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10-31-2018 01:46 PM
Please help. i'm trying to setup the BIOS as i need to change the setting but i can't as it is asking for a BIOS Administrator password. Unfortunately i'm not the initial owner of this laptop computer. Any help will be appreciated. Thank you
10-31-2018 01:56 PM
there are no error codes. it will just as me for the password for like 2 times and then a keyboard will come up in the screen and will seem to ask me to type a password again and if i try it says something like Authentication failed.
11-06-2018 12:05 PM
For that model you will need to contact HP in your region and they should be able to send you a customized SMC.bin file which you can use at boot to reset the password.
Contact Support >> http://www8.hp.com/us/en/contact-hp/ww-contact-us.html
When talking to the HP rep ask them to escalate your service request.
Just to note:
Do not try removing the RTC/BIOS battery. It will not remove the password, but it will reset the clock - as SMC files are time coded, a large disparity between the system clock and the time encoded in the SMC will cause it to fail.
REO