plz i need a bios main dump for lenovo l15 4 gen , i dont have backup cause the isuue is i did crack the ship . model type: 21h4s29p00 s/n: PW08T7W0 - mobo: LG4 LT5 RPL RT UMA MB 8L 223042-2 . BIOS 64 MBIT ....THANKS