Intel SSD 520 Not find

HELP
Have a user who have a Intel SSD 520 180Gb, User have run Bitlock and when i should change harddrive i checked with a extern dock i can reach the file Work.
Install the new hdd and should add back files from Intel disk then its dead dead dead, try to put it in to computer again but nothing happen. try to find it in diskmanager, try intel SSD toolbox but nothing, no live at all from hard drive. What to do next? i don´t care about hdd but info at it are importen.