Bios Mods -The Best BIOS Update and Modification Source

Hello all not sure I'm in the right place but just wondering if there is anyone here that could help, just bought a used Dell XPS laptop and I got locked out of the bios and now the computer would start until I set the system clock I have tried to use some generators but they are for five digit and mine is an eight digit code (896A99DA) service tag number is H4LJYP1 I have called Dell and got nowhere unless I extend the warranty for 249.00???? got the clock set through dos and loaded 7 back on it , it is up and running, update the bios to A17.... but still locked out!!!

I have jioned different sites and no one can seem to help,, I hired an "IT" guy and he said let me work my majic!! and failed with his softwarenot sure where to turn until I found you guys hoping that you might specialize in something like this? From what I understand they are phoenix bios

to the mods sorry I posted in the wrong thread before

"From what you understand"? Are you completely sure it's a phoenix bios? There are several manufactures that have eight-digit codes set as backdoor/master passwords. If it's made by Dell the serial number might be the backdoor password. Have you been to this site and tried the generators there?

I am not sure that they are Phoenix bios, I guess I "[censored]-u-me d". I have updated to the A17 thinking it may reset but did not work!!! tried finding who made it but no luck!! I did not know or think of trying one of the other keys that had 8 digits, other than the suggested dell or thought of the serial ,it is 11 digits but I will give that a try and post back