Forgotten bios password on probook 450 g4

[q_leif]

Product name  : HP PROBOOK 450 G4

Operating System  : WINDOWS 10 (64 bit)

Product ID : Y7Z97EA# ABV

S/N       : 5CD70624N1

Motherboard Model :  X83 ( DA0X83MB6H0  REV. H)

When resart it keep requesting for the password and here is the attatched photo below.

I badly needs a help, other alternatives  I sort from  the HP agent in my location are

all expensive . Thank you  all

....... LEIF........

[DavidPK]

Hi,

At the password screen, hit enter 3 times. 

If you receive an 8 digit 'halt code', post back with this code.

If you don't receive a halt code, you will need to Contact HP Business support - they should be able to send you a customised SMC.bin file which you can use at boot to reset the password.

You can contact HP Business Support in your country via

http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html

or

https://support.hp.com/us-en/contact-hp

Regards,

DP-K

[q_leif]

Hello  DP-K,

as I tapped the ENTER KEY three times, no code  came but here is what I got ;

( SYSTEM LOCKED, PRESS THE POWER BUTTOM TO RESTART THE SYSTEM ).

Regard,

LEIF

[DavidPK]

Hi,

Unfortunately, that leaves the HP option as your best bet - there are no 3rd party tools that will work for this Model and the only alternative to requesting a smc from Business Support would be to replace the bios chip.

Just to note, if you do intend to go the HP route, don't try removing the rtc battery.  It won't 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.

Regards,

DP-K