In this thread you can post your requests for Lenovo G580 (20150) and (2189), G480, G780, N581, Y580, V580, G570, Z570, Z470, Z370.  If someone wants upgrade Wi-Fi card and remove whitelist, or unlock hidden additional menus and settings in bios setup menu, then you can post your request in this thread.   For prepare unlocked bios you should post your request here and then send me your file backup of bios via PM.  For creating backup of bios use attached program. Extract attached