never mind i found it.
https://www.techpowerup.com/vgabios/216553/galaxy-rtx2080ti-11264-181010
my bad. sry.
I will try flashing it and will give feedback
Edit:
tried but:
XUSB FW component of the input GPU firmware image is imcompatible
its like the firmware image is too new, to flash this one.
if anybody have some suggestions it would be great.