OK, after spending amount of time on emails to HP customer support (which was great waste of time), I've decided to strip my omnibook apart.
Following the omnibook service manual I've learned, that bios IC is soldered on the motherboard (non-removable). RTC system battery is also soldered (I've removed it with soldering iron and put it back after about 5 hours, but it didn't do any good). No ˝clear cmos˝ jumper of any kind, no way to get pass that damn BIOS password.
If one wants to get past bios password, only way trough is contacting HP (I did that, and even tho I've received few we'll-be-glad-to-help-you nonsence mails, they did nothing because im not in the USA --> apparently password removal request form which I faxed to them only works for Americans).
I've gone trough google up and down and..... nothing. I've also downloaded every ˝password removal process˝ I found on e-mule, dc++, various torrent sites,...., and still nothing.
I've also tried every single method I found on here and on some other computer forums, even those which would work on other HP notebooks, and still....... nothing.
So if somebody can help me, please do before I loose my mind completely....