Bios Mods -The Best BIOS Update and Modification Source

Hi, please HELP ME !

I flashed my Lenovo 330-15igm bios back to 7XCN36WW after I installed the last available bios and now the laptop doesn't turn on. I only have black screen and white led when I connect it to the power (battery is currently disconnected).

I have:

7XCN36WW.exe
bios .bin file extracted
bios_rel.fd file

it's an Insyde BIOS

I hope you can help me with the USB method, what I need to do more??

This is really an urgent situation, I hope you can help me. I'm really desesperate cause I need to use the laptop.

I just uploaded the previous BIOS I have:

https://www.mediafire.com/file/wp5qjkyv8...W.exe/file
https://www.mediafire.com/file/vklh323u7...el.fd/file
https://www.mediafire.com/file/d9jbkn2ju...p.bin/file

I just read that I need to change the start and the end of the .fd file and copy it to an USB drive but I can't find info related to the name of the file and the program I need to use.

I'm currently trying to get the filename for the crisis method ( forums.mydigitallife .net/threads/undocumented-insyde-bios-recovery-method-use-andys-tool-to-obtain-possible-names.13095/page-32 ) I hope you can help me

Edit: Just found the filename but I the pendrive isn't read when the laptop is on...

PLEASE HELP ME

Thanks !!

Regards