Lenovo B590 - remove password from BIOS

[MrRatio]

Hello.

I have big problem with my Lenovo B590 and BIOS with password. 2 years ago I bought this laptop and set supervisor password. I can run my laptop, can run Windows, can run from pendrive, can install any OS and etc., but I can't enter to BIOS.
When I try enter to BIOS I have this icon and do not remember my password.

I wrote to Levnovo and they told me that I must pay for replace my motherboard
There is any way to remove password from my backup bios file (bin file) and flash it to my laptop? Please help.

My BIOS backup file is here.

[jammet]

you need to flash it via SPI.
or maybe you can reset the bios password by removing cmos battery or there might be a jumper or DIP switches to reset it.

[MrRatio]

No. I remove main battery and cmos battery for few hours and password still exist. This laptop do not have DIP switches. It is Lenovo protection and I must replace motherboard

[jammet]

try to reprogram the bios chip via SPI