How to flash Lenovo BIOS "forcefully"

Discussion in 'BIOS Mods' started by ericw12, Jul 21, 2019.

  1. ericw12

    ericw12 MDL Novice

    Jul 21, 2019
    I have a pre-release / engineering Lenovo T480s notebook with order version of BIOS like 0.13, and it beeps and has an error message - "PS/2 mouse not connected" every time boots up. I want to flash to a production bios, current version 1.31, but the official bios upgrade tool from Lenovo always give me the error "OEM check failed from BIOS service" and would not do it.

    I am wondering
    1. whether I can flash the BIOS with other tool forcefully?
    2. How to get the rom from official installation? There are .FL1 and .FL2 files in official installation folder, and I think they are probably some kind of BIOS rom files... but I do not which flash tool can and how to use them.