Need bios file for Toughbook CF-52GCMBXAM

Hi everyone.
Can anybody help me to find bios file for laptop I try to repair?
My laptop marked Toughbook CF-52GCMBXAM
It's mainboard marked DL3UP1692BBA CF52MK2L
and BIOS board marked CF-K52B006 DL3UA1692BBA
If anybody have a compatible BIOS file please send it to my email or give me a link for download