Thinkpad x260 not detect hdd after mod

hi… i have thinkpad x260 not detect hdd after mod
any suggest

regards

suggest ?
more useful information :joy:

MOD ? what mod ,.,WHO mod ,.,.and actual you using SATA CONTROLER - mode
hdd name or OS version and boot mode ?

edit,.
if you mean RST rom ? ,.,probably you use bad rom for another HW / chipset > not works

I’ve clearME the bios files

thanx for reply