just resetting the chip, but got no idea where to find it! the videos you posted doesn´t really helped me
Set default bios settings and/or then remove cmos battery. Those instructions can be found on Lennovo support website.
ok, i´ll get into detail: there was an supervisor passoword set. i removed it and then came another password, the power on password. this thing i can kill by removing the cmos battery, but i don´t know where to find it, the lenovo site has no information about it and the forum won´t tell me either because they say it´s illegal. the lenovo support line also said so and the support will charge me about 100 euros for sending the laptop in! i just want to know where to find this sh*** little cmos battery but cannot find it!