Hello! After fix motherboard BIOS in local service centre I'm lost Windows license and in Windows OS LAN card get error "code 10". In Linux OS LAN card work perfect. In the Internet I found a information about this issue. It's can be because Mac address in BIOS was reset to zeros. I download last HP BIOS config Utility (BCU) and trying to enable Manufacture Programming mode for change Mac address, but when trying to set value for "Manufacture Programming mode" to "Unlock" I'm getting error "access denied". Other parameters I can edit with BCU - no problems.
Sorry for my bad English.
P.S. BIOS version is last f.57